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We study the resistance of stainless steels with different contents of nitrogen after plasma-arc remelting to hydrogen degradation. The dependence of the mechanical properties of steels on the content of nitrogen is quite complicated, which is explained by changes in the phase composition. In the analyzed collection of steels (Kh18AN9, Kh20AN15, Kh18AG10, and Kh18AG15), Kh18AG15 steel has the best combination of the characteristics of strength and plasticity in hydrogen. 相似文献
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Translated from Poroshkovaya Metallurgiya, No. 7(355), pp. 18–23, July, 1992. 相似文献
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Translated from Poroshkovaya Metallurgiya, No. 4(340), pp. 44–48, April, 1991. 相似文献
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Ya. A. Kryl' A. A. Isakov S. A. Artemyuk V. V. Cherednichenko 《Powder Metallurgy and Metal Ceramics》1993,32(3):194-198
Institute of Superhard Materials, Academy of Sciences of the Ukraine, Kiev. Translated from Poroshkovaya Metallurgiya, No. 3(363), pp. 8–13, March, 1993. 相似文献
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A. V. Lavrinovich Ya. A. Kryl' I. M. Androsov S. A. Artemyuk 《Powder Metallurgy and Metal Ceramics》1990,29(4):328-332
Translated from Poroshkovaya Metallurgiya, No. 4(328), pp. 85–89, April, 1990. 相似文献
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The effects of temperature and nitrogen pressure are studied on the SiC Si3N4 transformation of silicon carbide powders of various phase compositions, specific surface areas, and contents of mixtures. It is shown that the degree of transformation increases with nitrogen pressure up to 10 MPa and that, in all temperature and pressure ranges of nitrogen, it is higher for bulk free powder than the preliminarily compacted material. In 30–60 min, a complete transformation of SiC into Si3N4 occurs under 10 MPa nitrogen pressure and at 1650–1750°C temperature.Institute of Inorganic Chemistry, Slovakian Academy of Sciences. Institute of Superhard Materials, Ukrainian Academy of Sciences, Kiev. Translated from Poroshkovaya Metallurgiya, No. 4(364), pp. 1–6, April, 1993. 相似文献
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