{"id":2101,"date":"2024-07-08T03:38:55","date_gmt":"2024-07-08T03:38:55","guid":{"rendered":"https:\/\/iticourse.com\/?p=2101"},"modified":"2024-07-10T14:08:29","modified_gmt":"2024-07-10T14:08:29","slug":"heat-treatment","status":"publish","type":"post","link":"https:\/\/iticourse.com\/olds\/heat-treatment\/","title":{"rendered":"\u090a\u0937\u094d\u092e\u093e \u0909\u092a\u091a\u093e\u0930 \u0935 \u0938\u094d\u091f\u0940\u0932 \u0915\u0940 \u0938\u0902\u0930\u091a\u0928\u093e"},"content":{"rendered":"<h2 class=\"wp-block-heading\">\u090a\u0937\u094d\u092e\u093e \u0909\u092a\u091a\u093e\u0930 \u0915\u094d\u092f\u093e \u0939\u0948?<\/h2><p>&#8220;\u0935\u0939 \u0935\u093f\u0927\u093f \u091c\u093f\u0938\u0915\u0940 \u0938\u0939\u093e\u092f\u0924\u093e \u0938\u0947 \u0927\u093e\u0924\u0941\u0913\u0902 \u0915\u0940 \u0906\u0928\u094d\u0924\u0930\u093f\u0915 \u0938\u0902\u0930\u091a\u0928\u093e (internal structure) \u092e\u0947\u0902 \u092a\u0930\u093f\u0935\u0930\u094d\u0924\u0928 \u0915\u0930\u0915\u0947 \u092f\u093e\u0928\u094d\u0924\u094d\u0930\u093f\u0915 \u0917\u0941\u0923\u094b\u0902 \u092e\u0947\u0902 \u092a\u0930\u093f\u0935\u0930\u094d\u0924\u093f\u0924 \u0915\u093f\u092f\u093e \u091c\u093e\u0924\u093e \u0939\u0948, \u090a\u0937\u094d\u092e\u093e \u0909\u092a\u091a\u093e\u0930 \u0935\u093f\u0927\u093f \u0915\u0939\u0932\u093e\u0924\u0940 \u0939\u0948\u0964&#8221;<br> \u0927\u093e\u0924\u0941\u0913\u0902 \u0915\u0947 \u092f\u093e\u0928\u094d\u0924\u094d\u0930\u093f\u0915 \u0917\u0941\u0923\u094b\u0902 (machanical qualities) \u0915\u094b \u092c\u0926\u0932\u0928\u0947 \u0915\u0947 \u0932\u093f\u090f \u0927\u093e\u0924\u0941\u0913\u0902 \u0915\u094b \u092d\u093f\u0928\u094d\u0928-\u092d\u093f\u0928\u094d\u0928 \u0924\u093e\u092a\u092e\u093e\u0928\u094b\u0902 \u092a\u0930 \u0917\u0930\u094d\u092e \u0935 \u0920\u0923\u094d\u0921\u093e \u0915\u093f\u092f\u093e \u091c\u093e\u0924\u093e \u0939\u0948\u0964 \u0938\u094d\u091f\u0940\u0932 \u092f\u093e \u0927\u093e\u0924\u0941\u0913\u0902 \u092e\u0947\u0902 \u0906\u0935\u0936\u094d\u092f\u0915 \u0917\u0941\u0923 \u0909\u0924\u094d\u092a\u0928\u094d\u0928 \u0915\u0930\u0928\u0947 \u0915\u0947 \u0932\u093f\u090f \u090a\u0937\u094d\u092e\u093e \u0909\u092a\u091a\u093e\u0930 \u0915\u0930\u0924\u0947 \u0939\u0948\u0902\u0964<\/p><h2 class=\"wp-block-heading\">\u090a\u0937\u094d\u092e\u093e \u0909\u092a\u091a\u093e\u0930 \u0915\u0947 \u0909\u0926\u094d\u0926\u0947\u0936\u094d\u092f<\/h2><ol class=\"wp-block-list\"><li>\u0927\u093e\u0924\u0941\u0913\u0902 \u0915\u0947 \u0917\u094d\u0930\u0947\u0928 \u0938\u093e\u0907\u091c \u092e\u0947\u0902 \u0938\u0941\u0927\u093e\u0930 \u0915\u0930\u0928\u093e\u0964<\/li><li> \u0927\u093e\u0924\u0941\u0913\u0902 \u0915\u0940 \u0915\u0920\u094b\u0930\u0924\u093e \u092f\u093e \u0938\u093e\u092e\u0930\u094d\u0925\u094d\u092f \u0915\u094b \u092c\u095d\u093e\u0928\u093e\u0964<\/li><li> \u0927\u093e\u0924\u0941\u0913\u0902 \u092a\u0930 \u0920\u0923\u094d\u0921\u0940 \u0905\u0935\u0938\u094d\u0925\u093e \u092e\u0947\u0902 \u0915\u093e\u0930\u094d\u092f \u0915\u0930\u0928\u0947, \u092b\u094b\u0930\u094d\u091c\u093f\u0902\u0917 (forging) \u0915\u0930\u0928\u0947, \u0935\u0948\u0932\u094d\u0921\u093f\u0902\u0917 (welding) \u0915\u0930\u0928\u0947 \u092f\u093e \u0922\u0932\u093e\u0908 \u0915\u0930\u0928\u0947 \u0915\u0947 \u0915\u093e\u0930\u0923 \u0906\u090f \u0927\u093e\u0924\u0941\u0913\u0902 \u0915\u0947 \u0906\u0928\u094d\u0924\u0930\u093f\u0915 \u092a\u094d\u0930\u0924\u093f\u092c\u0932 \u0915\u094b \u0926\u0942\u0930 \u0915\u0930\u0928\u093e\u0964<\/li><li> \u0927\u093e\u0924\u0941\u0913\u0902 \u0915\u0940 \u092e\u0936\u0940\u0928\u093f\u0902\u0917 \u092c\u095d\u093e\u0928\u093e\u0964<\/li><li> \u0938\u094d\u091f\u0940\u0932 \u092e\u0947\u0902 \u092e\u093e\u0930\u094d\u091f\u0947\u0928\u0938\u093e\u0907\u091f (martensite) \u0915\u0947 \u0917\u094b\u0932 \u0935 \u091b\u094b\u091f\u0947 \u0917\u094d\u0930\u0947\u0928 \u092c\u0928\u093e\u0928\u093e\u0964<\/li><li> \u0927\u093e\u0924\u0941\u0913\u0902 \u0915\u0947 \u092f\u093e\u0928\u094d\u0924\u094d\u0930\u093f\u0915 \u0917\u0941\u0923\u094b\u0902 \u092e\u0947\u0902 \u0938\u0941\u0927\u093e\u0930 \u0915\u0930\u0928\u093e\u0964<\/li><\/ol><p>\u090f\u0915 \u0910\u0938\u0940 \u0927\u093e\u0924\u0941 \u091c\u093f\u0938\u0915\u094b \u0920\u0923\u094d\u0921\u093e \u092f\u093e \u0917\u0930\u094d\u092e \u0915\u0930\u0928\u0947 \u092a\u0930 \u0915\u094b\u0908 \u092d\u0940 \u092a\u094d\u0930\u092d\u093e\u0935 \u0928\u0939\u0940\u0902 \u092a\u095c\u0924\u093e \u0939\u0948\u0964 \u0935\u0939 \u0927\u093e\u0924\u0941 \u0936\u0941\u0926\u094d\u0927 \u0906\u092f\u0930\u0928 (wrought iron) \u092f\u093e \u0915\u091a\u094d\u091a\u093e \u0932\u094b\u0939\u093e \u0939\u0948\u0964 \u092f\u0939 \u090f\u0915 \u0924\u0928\u094d\u092f \u0935 \u092e\u0941\u0932\u093e\u092f\u092e \u0927\u093e\u0924\u0941 \u0939\u0948\u0964 \u0907\u0938\u092e\u0947\u0902 \u0915\u093e\u0930\u094d\u092c\u0928 \u0915\u0940 \u092e\u093e\u0924\u094d\u0930\u093e 0.5% \u0939\u094b\u0924\u0940 \u0939\u0948\u0964 \u092f\u0926\u093f \u0907\u0938\u092e\u0947\u0902 \u0915\u093e\u0930\u094d\u092c\u0928 \u0915\u0940 \u092e\u093e\u0924\u094d\u0930\u093e 0.5% \u0938\u0947 \u0905\u0927\u093f\u0915 \u0915\u0930 \u0926\u0940 \u091c\u093e\u090f\u0964 \u0909\u0938\u0915\u0947 \u092c\u093e\u0926 \u0907\u0938\u0915\u094b \u090f\u0915 \u0935\u093f\u0936\u0947\u0937 \u0924\u093e\u092a\u092e\u093e\u0928 \u092a\u0930 \u0917\u0930\u094d\u092e \u0915\u0930\u0928\u0947 \u0935 \u0924\u0947\u091c\u0940 \u0938\u0947 \u0920\u0923\u094d\u0921\u093e \u0915\u0930\u0928\u0947 \u092a\u0930 \u0915\u0920\u094b\u0930\u0924\u093e \u0917\u0941\u0923 \u0906 \u091c\u093e\u0924\u093e \u0939\u0948\u0964<\/p><h2 class=\"wp-block-heading\">\u0938\u094d\u091f\u0940\u0932 \u0915\u0940 \u0938\u0902\u0930\u091a\u0928\u093e<\/h2><p>\u0938\u094d\u091f\u0940\u0932 \u0932\u094b\u0939\u0947 \u0935 \u0915\u093e\u0930\u094d\u092c\u0928 \u0915\u0947 \u092e\u093f\u0936\u094d\u0930\u0923 \u0938\u0947 \u092c\u0928\u093e\u092f\u0940 \u0917\u092f\u0940 \u0927\u093e\u0924\u0941 \u0939\u0948\u0964 \u091c\u093f\u0938\u092e\u0947\u0902 \u0915\u093e\u0930\u094d\u092c\u0928 \u0915\u0940 \u092e\u093e\u0924\u094d\u0930\u093e \u0915\u092e-\u0938\u0947-\u0915\u092e 0.15% \u0924\u0925\u093e \u0905\u0927\u093f\u0915-\u0938\u0947-\u0905\u0927\u093f\u0915 1.7% \u0939\u094b\u0924\u0940 \u0939\u0948\u0964 \u0914\u0930 \u0938\u094d\u091f\u0940\u0932 \u092e\u0947\u0902 \u0906\u0935\u0936\u094d\u092f\u0915\u0924\u093e \u0915\u0947 \u0905\u0928\u0941\u0938\u093e\u0930 \u092f\u093e\u0928\u094d\u0924\u094d\u0930\u093f\u0915 \u0917\u0941\u0923 \u092a\u093e\u0928\u0947 \u0915\u0947 \u0932\u093f\u090f \u090a\u0937\u094d\u092e\u093e \u0909\u092a\u091a\u093e\u0930 \u0915\u093f\u092f\u093e \u091c\u093e\u0924\u093e \u0939\u0948\u0964<br> \u090f\u0915 \u092e\u0939\u0924\u094d\u0924\u0935\u092a\u0942\u0930\u094d\u0923 \u092c\u093e\u0924 \u092f\u0939 \u0939\u0948 \u0915\u093f \u090a\u0937\u094d\u092e\u093e \u0909\u092a\u091a\u093e\u0930 (heat treatment) \u0915\u0930\u0924\u0947 \u0938\u092e\u092f \u0927\u093e\u0924\u0941 \u0915\u0947 \u0906\u0928\u094d\u0924\u0930\u093f\u0915 \u0915\u0923\u094b\u0902 \u092e\u0947\u0902 \u0939\u094b\u0928\u0947 \u0935\u093e\u0932\u0947 \u092a\u0930\u093f\u0935\u0930\u094d\u0924\u0928 \u092f\u093e \u092c\u0926\u0932\u093e\u0935 \u0915\u094b \u0915\u0947\u0935\u0932 \u092e\u093e\u0907\u0915\u094d\u0930\u094b\u0938\u094d\u0915\u094b\u092a \u0915\u0947 \u0926\u094d\u0935\u093e\u0930\u093e \u0939\u0940 \u0926\u0947\u0916 \u0938\u0915\u0924\u0947 \u0939\u0948\u0902\u0964<\/p><h2 class=\"wp-block-heading\">\u0938\u094d\u091f\u0940\u0932 \u0915\u0940 \u0938\u0902\u0930\u091a\u0928\u093e \u0915\u0947 \u092a\u094d\u0930\u0915\u093e\u0930<\/h2><figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"336\" height=\"226\" src=\"https:\/\/iticourse.com\/wp-content\/uploads\/2020\/01\/Structure-of-steel.png\" alt=\"\" class=\"wp-image-2112\" srcset=\"https:\/\/iticourse.com\/olds\/wp-content\/uploads\/2020\/01\/Structure-of-steel.png 336w, https:\/\/iticourse.com\/olds\/wp-content\/uploads\/2020\/01\/Structure-of-steel-300x202.png 300w\" sizes=\"auto, (max-width: 336px) 100vw, 336px\" \/><\/figure><p>\u0938\u094d\u091f\u0940\u0932 \u0915\u0940 \u0938\u0902\u0930\u091a\u0928\u093e (structure) \u0915\u093e \u0935\u0930\u094d\u0923\u0928, \u0938\u094d\u091f\u0940\u0932 \u0915\u0940 \u0906\u0928\u094d\u0924\u0930\u093f\u0915 \u0938\u0902\u0930\u091a\u0928\u093e \u092a\u0930 \u0939\u0940 \u0915\u093f\u092f\u093e \u091c\u093e\u0924\u093e \u0939\u0948\u0964 \u091c\u094b \u0928\u093f\u092e\u094d\u0928 \u092a\u094d\u0930\u0915\u093e\u0930 \u0939\u0948-<\/p><h3 class=\"wp-block-heading\">1.\u092b\u0948\u0930\u093e\u0907\u091f<\/h3><p>\u0938\u094d\u091f\u0940\u0932 \u0915\u0940 \u092f\u0939 \u0938\u0902\u0930\u091a\u0928\u093e \u0938\u092c\u0938\u0947 \u0905\u0927\u093f\u0915 \u092e\u0941\u0932\u093e\u092f\u092e \u0939\u094b\u0924\u0940 \u0939\u0948\u0964 \u0907\u0938\u092e\u0947\u0902 \u0915\u093e\u0930\u094d\u092c\u0928 \u0915\u0940 \u092e\u093e\u0924\u094d\u0930\u093e 0.008% \u0938\u0947 0.025% \u0924\u0915 \u0939\u094b\u0924\u0940 \u0939\u0948\u0964 \u0914\u0930 \u0907\u0938\u0915\u0940 \u092f\u093e \u092b\u0948\u0930\u093e\u0907\u091f \u0915\u0940 \u0906\u0928\u094d\u0924\u0930\u093f\u0915 \u0938\u0902\u0930\u091a\u0928\u093e \u0930\u0935\u0947\u0926\u093e\u0930 \u0939\u094b\u0924\u0940 \u0939\u0948\u0964 \u0914\u0930 \u0907\u0938\u092e\u0947\u0902 \u091a\u0941\u092e\u094d\u092c\u0915 \u0915\u093e \u0917\u0941\u0923 \u092d\u0940 \u092a\u093e\u092f\u093e \u091c\u093e\u0924\u093e \u0939\u0948\u0964<\/p><h3 class=\"wp-block-heading\">2.\u0938\u0940\u092e\u0947\u0928\u094d\u091f\u093e\u0907\u091f<\/h3><p>\u092f\u0939 \u0938\u0902\u0930\u091a\u0928\u093e \u0938\u092c\u0938\u0947 \u0905\u0927\u093f\u0915 \u0915\u0920\u094b\u0930 \u0935 \u092d\u0902\u0917\u0941\u0930 \u0939\u094b\u0924\u0940 \u0939\u0948\u0964 \u0914\u0930 \u0907\u0938 \u0938\u0902\u0930\u091a\u0928\u093e \u0915\u0940 \u0924\u0928\u0928 \u0938\u093e\u092e\u0930\u094d\u0925\u094d\u092f \u092c\u0939\u0941\u0924 \u0915\u092e \u0932\u0917\u092d\u0917 350 \u0915\u093f\u0917\u094d\u0930\u093e\/\u0935\u0930\u094d\u0917 \u0938\u0947\u092e\u0940 \u0939\u094b\u0924\u0940 \u0939\u0948\u0964 \u0907\u0938\u092e\u0947\u0902 \u0915\u093e\u0930\u094d\u092c\u0928 \u0915\u0940 \u092a\u094d\u0930\u0924\u093f\u0936\u0924 \u092e\u093e\u0924\u094d\u0930\u093e \u0905\u0928\u094d\u092f \u0938\u0902\u0930\u091a\u0928\u093e\u0913\u0902 \u0938\u0947 \u0905\u0927\u093f\u0915 \u0939\u094b\u0924\u0940 \u0939\u0948\u0964 \u0914\u0930 \u0915\u093e\u0930\u094d\u092c\u0928(carbon), \u0906\u092f\u0930\u0928 (iron) \u0915\u0947 \u0938\u093e\u0925 \u0930\u093e\u0938\u093e\u092f\u0928\u093f\u0915 \u0930\u0942\u092a  \u092e\u0947\u0902 \u092e\u093f\u0932\u0915\u0930 \u0938\u0940\u092e\u0947\u0928\u094d\u091f\u093e\u0907\u091f \u092c\u0928\u093e\u0924\u093e \u0939\u0948\u0964 \u0938\u0940\u092e\u0947\u0928\u094d\u091f\u093e\u0907\u091f \u0915\u093e \u0930\u093e\u0938\u093e\u092f\u0928\u093f\u0915 \u0928\u093e\u092e \u0906\u092f\u0930\u0928 \u0915\u093e\u0930\u094d\u092c\u093e\u0907\u0921 \u0939\u0948\u0964<\/p><h3 class=\"wp-block-heading\">3.\u092a\u093f\u0905\u0930\u0932\u093e\u0907\u091f\/\u092f\u0942\u091f\u0947\u0915\u094d\u091f\u094b\u0907\u0921 \u0938\u094d\u091f\u0940\u0932<\/h3><p>\u0938\u0940\u092e\u0947\u0928\u094d\u091f\u093e\u0907\u091f, \u092b\u0948\u0930\u093e\u0907\u091f \u0915\u0947 \u0938\u093e\u0925 \u092e\u093f\u0932\u0915\u0930 \u092a\u093f\u0905\u0930\u0932\u093e\u0907\u091f (pearlite) \u092c\u0928\u093e\u0924\u093e \u0939\u0948\u0964 \u0939\u092e \u091c\u0948\u0938\u0947-\u091c\u0948\u0938\u0947 \u0906\u092f\u0930\u0928 \u092e\u0947\u0902 \u0915\u093e\u0930\u094d\u092c\u0928 \u0915\u0940 \u092e\u093e\u0924\u094d\u0930\u093e \u092c\u095d\u093e\u0924\u0947 \u0939\u0948\u0902, \u0924\u094b \u0909\u0938\u092e\u0947\u0902 \u092a\u093f\u0905\u0930\u0932\u093e\u0907\u091f \u0915\u0940 \u092e\u093e\u0924\u094d\u0930\u093e \u092c\u095d\u0924\u0940 \u091c\u093e\u0924\u0940  \u0939\u0948 \u0914\u0930 \u092b\u0948\u0930\u093e\u0907\u091f \u0915\u0940 \u092e\u093e\u0924\u094d\u0930\u093e \u0915\u092e \u0939\u094b\u0924\u0940 \u091c\u093e\u0924\u0940 \u0939\u0948\u0964 \u091c\u092c \u0915\u093e\u0930\u094d\u092c\u0928 \u0915\u0940 \u092e\u093e\u0924\u094d\u0930\u093e \u0932\u0917\u092d\u0917 0.80% \u0938\u0947 0.83% \u0939\u094b \u091c\u093e\u0924\u0940 \u0939\u0948, \u0924\u092c \u0907\u0938 \u0938\u092e\u092f \u0938\u094d\u091f\u0940\u0932 \u092e\u0947\u0902 100% \u092a\u093f\u0905\u0930\u0932\u093e\u0907\u091f \u0939\u094b\u0924\u093e \u0939\u0948\u0964<\/p><h3 class=\"wp-block-heading\">\u092a\u093f\u0905\u0930\u0932\u093e\u0907\u091f\/\u092f\u0942\u091f\u0947\u0915\u094d\u091f\u094b\u0907\u0921 \u0938\u094d\u091f\u0940\u0932 \u0915\u0947 \u092a\u094d\u0930\u0915\u093e\u0930<\/h3><p>\u092f\u0942\u091f\u0947\u0915\u094d\u091f\u094b\u0907\u0921 \u0938\u094d\u091f\u0940\u0932 \u0928\u093f\u092e\u094d\u0928 \u092a\u094d\u0930\u0915\u093e\u0930 \u0915\u0940 \u0939\u094b\u0924\u0940 \u0939\u0948\u0902-<\/p><h4 class=\"wp-block-heading\">(i)\u0939\u093e\u0907\u092a\u0930-\u092f\u0942\u091f\u0947\u0915\u094d\u091f\u094b\u0907\u0921 \u0938\u094d\u091f\u0940\u0932<\/h4><p>\u092f\u0939 \u0938\u0940\u092e\u0947\u0928\u094d\u091f\u093e\u0907\u091f \u0935 \u092a\u093f\u0905\u0930\u0932\u093e\u0907\u091f \u0915\u093e \u092e\u093f\u0936\u094d\u0930\u0923 \u0939\u094b\u0924\u093e \u0939\u0948\u0964 \u0907\u0938\u092e\u0947\u0902 \u0915\u093e\u0930\u094d\u092c\u0928 \u0915\u0940 \u092e\u093e\u0924\u094d\u0930\u093e 1.8% \u0938\u0947 2.1% \u0939\u094b\u0924\u0940 \u0939\u0948\u0964<\/p><h4 class=\"wp-block-heading\">(ii)\u0939\u093e\u0907\u092a\u094b-\u092f\u0942\u091f\u0947\u0915\u094d\u091f\u094b\u0907\u0921 \u0938\u094d\u091f\u0940\u0932<\/h4><p>\u092f\u0939 \u092a\u093f\u0905\u0930\u0932\u093e\u0907\u091f \u0935 \u092b\u0948\u0930\u093e\u0907\u091f \u0915\u093e \u092e\u093f\u0936\u094d\u0930\u0923 \u0939\u094b\u0924\u093e \u0939\u0948\u0964 \u0914\u0930 \u0907\u0938\u092e\u0947\u0902 \u0915\u093e\u0930\u094d\u092c\u0928 \u0915\u0940 \u092e\u093e\u0924\u094d\u0930\u093e 0.8% \u0939\u094b\u0924\u0940 \u0939\u0948\u0964<\/p><h3 class=\"wp-block-heading\">4.\u0911\u0938\u094d\u091f\u0947\u0928\u093e\u0907\u091f<\/h3><p>\u091c\u092c \u0938\u094d\u091f\u0940\u0932 \u0915\u094b \u0909\u091a\u094d\u091a \u0915\u094d\u0930\u093f\u091f\u093f\u0915\u0932 \u0924\u093e\u092a\u092e\u093e\u0928 (high critical temperature) \u092a\u0930 \u0917\u0930\u094d\u092e \u0915\u093f\u092f\u093e \u091c\u093e\u0924\u093e \u0939\u0948, \u0924\u092c \u0911\u0938\u094d\u091f\u0947\u0928\u093e\u0907\u091f \u092a\u094d\u0930\u093e\u092a\u094d\u0924 \u0939\u094b\u0924\u093e \u0939\u0948\u0964 \u092f\u0939 \u0915\u0920\u094b\u0930 \u0938\u0902\u0930\u091a\u0928\u093e \u0939\u094b\u0924\u0940 \u0939\u0948, \u0932\u0947\u0915\u093f\u0928 \u092d\u0902\u0917\u0941\u0930 \u0928\u0939\u0940\u0902 \u0939\u094b\u0924\u0940 \u0939\u0948\u0964 \u0907\u0938 \u0938\u0902\u0930\u091a\u0928\u093e \u0915\u0940 \u0938\u094d\u091f\u0940\u0932 \u092e\u0947\u0902 \u091a\u0941\u092e\u094d\u092c\u0915\u0924\u094d\u0935 \u0938\u092e\u093e\u092a\u094d\u0924 \u0939\u094b \u091c\u093e\u0924\u093e \u0939\u0948\u0964<\/p><h3 class=\"wp-block-heading\">5.\u092e\u093e\u0930\u094d\u091f\u0947\u0928\u0938\u093e\u0907\u091f<\/h3><p>\u092f\u0926\u093f \u0938\u094d\u091f\u0940\u0932 \u0915\u094b \u0911\u0938\u094d\u091f\u0947\u0928\u093e\u0907\u091f \u0905\u0935\u0938\u094d\u0925\u093e \u0938\u0947 \u0920\u0923\u094d\u0921\u093e \u0915\u0930\u0928\u0947 \u0915\u0940 \u0926\u0930 \u092c\u0939\u0941\u0924 \u0905\u0927\u093f\u0915 \u092c\u0922\u093c\u093e \u0926\u0940 \u091c\u093e\u090f, \u0924\u094b \u0938\u094d\u091f\u0940\u0932 \u0905\u092a\u0928\u0940 \u092e\u0942\u0932 \u0905\u0935\u0938\u094d\u0925\u093e \u092e\u0947\u0902 \u0928 \u0906\u0915\u0930 \u090f\u0915 \u0928\u090f \u092a\u0926\u093e\u0930\u094d\u0925 \u092e\u0947\u0902 \u092c\u0926\u0932 \u091c\u093e\u0924\u093e \u0939\u0948, \u091c\u093f\u0938\u0947 \u092e\u093e\u0930\u094d\u091f\u0947\u0928\u0938\u093e\u0907\u091f (martensite) \u0915\u0939\u0924\u0947 \u0939\u0948\u0902\u0964 \u092e\u093e\u0930\u094d\u091f\u0947\u0928\u0938\u093e\u0907\u091f \u090f\u0915 \u0915\u0920\u094b\u0930 \u092a\u0926\u093e\u0930\u094d\u0925 \u0939\u094b\u0924\u093e \u0939\u0948, \u091c\u093f\u0938\u0915\u0947 \u0915\u093e\u0930\u0923 \u0938\u094d\u091f\u0940\u0932 \u092e\u0947\u0902 \u0915\u0920\u094b\u0930\u0924\u093e \u0915\u093e \u0917\u0941\u0923 \u0935\u093f\u0915\u0938\u093f\u0924 \u0939\u094b\u0924\u093e \u0939\u0948\u0964<\/p><h3 class=\"wp-block-heading\">6.\u091f\u094d\u0930\u0942\u0938\u094d\u091f\u093e\u0907\u091f<\/h3><p>\u092f\u0926\u093f \u092e\u093e\u0930\u094d\u091f\u0947\u0928\u0938\u093e\u0907\u091f \u0938\u0902\u0930\u091a\u0928\u093e \u0915\u094b 400\u00b0C \u092a\u0930 \u0917\u0930\u094d\u092e \u0915\u093f\u092f\u093e \u091c\u093e\u090f, \u0924\u094b \u090f\u0915 \u0905\u0927\u093f\u0915 \u0915\u0920\u094b\u0930 \u0938\u0902\u0930\u091a\u0928\u093e \u092a\u094d\u0930\u093e\u092a\u094d\u0924 \u0939\u094b\u0924\u0940 \u0939\u0948, \u091c\u093f\u0938\u0947 \u091f\u094d\u0930\u0942\u0938\u094d\u091f\u093e\u0907\u091f \u0915\u0939\u093e \u091c\u093e\u0924\u093e \u0939\u0948\u0964 \u0907\u0938 \u0938\u0902\u0930\u091a\u0928\u093e <a rel=\"noreferrer noopener\" aria-label=\"\u0935\u093e\u0932\u0940 (opens in a new tab)\" href=\"https:\/\/hi.m.wikipedia.org\/wiki\/%E0%A4%A4%E0%A4%BE%E0%A4%AA%E0%A5%8B%E0%A4%AA%E0%A4%9A%E0%A4%BE%E0%A4%B0\" target=\"_blank\">\u0935\u093e\u0932\u0940<\/a> \u0938\u094d\u091f\u0940\u0932 \u092e\u0947\u0902 \u0915\u092e\u094d\u092a\u0928 \u0938\u0939\u0928 \u0915\u0930\u0928\u0947 \u0915\u0940 \u0915\u094d\u0937\u092e\u0924\u093e \u0939\u094b\u0924\u0940 \u0939\u0948, \u092a\u0930\u0928\u094d\u0924\u0941 \u0907\u0938 \u092a\u0930 \u092e\u0936\u0940\u0928\u093f\u0902\u0917 \u0915\u093e\u0930\u094d\u092f (machining work) \u0938\u0930\u0932\u0924\u093e\u092a\u0942\u0930\u094d\u0935\u0915 \u0928\u0939\u0940\u0902 \u0915\u093f\u090f \u091c\u093e \u0938\u0915\u0924\u0947 \u0939\u0948\u0902\u0964<\/p><h3 class=\"wp-block-heading\">7.\u0938\u0949\u0930\u092c\u093e\u0907\u091f<\/h3><p>\u0938\u094d\u091f\u0940\u0932 \u0915\u094b \u0932\u0917\u092d\u0917 700\u00b0C \u092a\u0930 \u0917\u0930\u094d\u092e \u0915\u0930\u0928\u0947 \u0915\u0947 \u092c\u093e\u0926 \u091f\u0948\u092e\u094d\u092a\u0930\u093f\u0902\u0917 \u0915\u0930\u0915\u0947 \u0920\u0923\u094d\u0921\u093e \u0915\u0930\u0928\u0947 \u092a\u0930 \u091c\u094b \u0938\u0902\u0930\u091a\u0928\u093e \u092a\u094d\u0930\u093e\u092a\u094d\u0924 \u0939\u094b\u0924\u0940 \u0939\u0948\u0964 \u0909\u0938\u0947 \u0938\u0949\u0930\u092c\u093e\u0907\u091f \u0915\u0939\u093e \u091c\u093e\u0924\u093e \u0939\u0948\u0964 \u0907\u0938\u092e\u0947\u0902 \u092b\u0948\u0930\u093e\u0907\u091f \u0924\u0925\u093e \u0938\u0940\u092e\u0947\u0928\u094d\u091f\u093e\u0907\u091f \u0939\u094b\u0924\u093e \u0939\u0948\u0964<\/p><p style=\"background-color:#ffef13;color:#ff05f7\" class=\"has-text-color has-background\"><strong>More Information:-  <a rel=\"noreferrer noopener\" aria-label=\"\u091a\u093e\u0926\u0930\u094b\u0902 \u0915\u0947 \u092c\u093e\u0930\u0947 \u092e\u0947\u0902 (opens in a new tab)\" href=\"https:\/\/iticourse.com\/sheets\/\" target=\"_blank\">\u091a\u093e\u0926\u0930\u094b\u0902 \u0915\u0947 \u092c\u093e\u0930\u0947 \u092e\u0947\u0902<\/a><\/strong><\/p><p style=\"background-color:#c3b007;color:#200cff\" class=\"has-text-color has-background\"><strong><em>My Website:- iticourse.com<\/em><\/strong><\/p>","protected":false},"excerpt":{"rendered":"<p>\u090a\u0937\u094d\u092e\u093e \u0909\u092a\u091a\u093e\u0930 \u0915\u094d\u092f\u093e \u0939\u0948? &#8220;\u0935\u0939 \u0935\u093f\u0927\u093f \u091c\u093f\u0938\u0915\u0940 \u0938\u0939\u093e\u092f\u0924\u093e \u0938\u0947 \u0927\u093e\u0924\u0941\u0913\u0902 \u0915\u0940 \u0906\u0928\u094d\u0924\u0930\u093f\u0915 \u0938\u0902\u0930\u091a\u0928\u093e (internal structure) \u092e\u0947\u0902 \u092a\u0930\u093f\u0935\u0930\u094d\u0924\u0928 \u0915\u0930\u0915\u0947 \u092f\u093e\u0928\u094d\u0924\u094d\u0930\u093f\u0915 \u0917\u0941\u0923\u094b\u0902 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2112,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[4334,2349,2353,2358,2355,2356,2357,2338,2333,2334,2339,2332,2340,2337,2336,2335,2342,2344,2343,2341,2345,2346,2352,2351,2347,2348,2350,2354,4338,4336,4335,4337,4339],"class_list":["post-2101","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-fitter-course","tag-heat-treatment","tag-iti-course-admission","tag-iti-course-age-limit","tag-iti-course-benefits","tag-iti-course-book","tag-iti-course-book-pdf","tag-iti-course-branches","tag-iti-course-details-2019","tag-iti-course-details-after-10th","tag-iti-course-details-after-12th","tag-iti-course-details-in-english","tag-iti-course-details-in-hindi","tag-iti-course-duration","tag-iti-course-duration-after-12th-science","tag-iti-course-duration-in-hindi","tag-iti-course-duration-time","tag-iti-course-fees","tag-iti-course-full-form","tag-iti-course-kya-hai","tag-iti-course-list","tag-iti-course-list-in-hindi","tag-iti-courses-after-10th","tag-iti-courses-after-10th-class","tag-iti-courses-after-10th-fail","tag-iti-courses-after-10th-in-hindi","tag-iti-courses-after-12th","tag-iti-courses-and-duration","tag-what-is-a-iti-course","tag---pdf","tag-4336","tag-4335","tag-4337","tag-4339"],"_links":{"self":[{"href":"https:\/\/iticourse.com\/olds\/wp-json\/wp\/v2\/posts\/2101","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/iticourse.com\/olds\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/iticourse.com\/olds\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/iticourse.com\/olds\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/iticourse.com\/olds\/wp-json\/wp\/v2\/comments?post=2101"}],"version-history":[{"count":0,"href":"https:\/\/iticourse.com\/olds\/wp-json\/wp\/v2\/posts\/2101\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/iticourse.com\/olds\/wp-json\/wp\/v2\/media\/2112"}],"wp:attachment":[{"href":"https:\/\/iticourse.com\/olds\/wp-json\/wp\/v2\/media?parent=2101"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/iticourse.com\/olds\/wp-json\/wp\/v2\/categories?post=2101"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/iticourse.com\/olds\/wp-json\/wp\/v2\/tags?post=2101"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}