MARTENSITIC STAINLESS STEELS
\mˌɑːtənsˈɪtɪk stˈe͡ɪnləs stˈiːlz], \mˌɑːtənsˈɪtɪk stˈeɪnləs stˈiːlz], \m_ˌɑː_t_ə_n_s_ˈɪ_t_ɪ_k s_t_ˈeɪ_n_l_ə_s s_t_ˈiː_l_z]\
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Steels that contain very little nickel or other alloying metal, yet a high amount of chromium. Heat treatment of these steels hardens them and makes them stronger but also more brittle. they are used mainly for surgical instruments and in oil industry, they are designated as 400 series. Their orthorhombic molecular structure was discovered by German researcher Adolf Martens in 1890.
By Henry Campbell Black
Word of the day
Dopamine Acetyltransferase
- An enzyme that catalyzes the of groups from acetyl-CoA to arylamines. They have wide specificity for aromatic amines, particularly serotonin, and can also catalyze acetyl transfer between arylamines without CoA. EC 2.3.1.5.
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