The parameters of a microstructure controlling brittle strength of low-carbon steels with structure of tempered martensite

被引：0
|
作者：
Kotrechko, SA [1 ]
Meshkov, YY [1 ]
Televich, RV [1 ]
机构：
[1] GV Kurdyumov Met Phys Inst, UA-03680 Kiev, Ukraine
来源：
METALLOFIZIKA I NOVEISHIE TEKHNOLOGII | 2004年 / 26卷 / 04期
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中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Statistical model of brittle fracture of steels with a microstructure of tempered martensite is offered. Computer simulation gives theoretical values of brittle strength, R-MC, depending on martensite-pack size, d, and cementite-particle thickness, t(c), in steel. Comparison with experimental evidence is made for commercial steel 12XH3MPhiA. As shown, the rapid electrical self-resisting heating for steel quench gives rise to the optimal ratio of microstructural features of steel, namely, d/t approximate to 230-290.
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页码：435 / 456
页数：22
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