Effect of Tempering Temperature on Strength and Toughness of Novel Carbide-Free Bainite/Martensite Duplex Phase Steel

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Effect of Tempering Temperature on Strength and Toughness of Novel Carbide-Free Bainite/Martensite Duplex Phase Steel

机译：回火温度对新型无碳化贝氏体/马氏体双相钢强度和韧性的影响

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摘要

The effect of tempering temperature on strength and toughness of the novel carbide free bainite/martensite (CFB/M) duplex steel was investigated. The results showed that the CFB/M mixed microstructure has better tempering stability than single martensite microstructure. The steel has good combination of strength and toughness after tempering at 350 ℃, because the CFB in CFB/M mixed microstructure separates the original austenite grains and causes the refinement of lath martensite, and thermal and mechanical stable retained austenite in CFB is deformed absorbing energy and blocking crack propagation.

机译：研究了回火温度对新型碳化物自由贝氏体/马氏体（CFB / M）双相钢的强度和韧性的影响。结果表明，CFB / M混合微观结构具有比单马氏体微观结构更好的回火稳定性。钢在350℃的回火后具有良好的强度和韧性组合，因为CFB / M混合微观结构中的CFB分离原始奥氏体晶粒并导致Lath马氏体的改进，CFB中的热和机械稳定保留奥氏体变形变形吸收能量并阻止裂缝繁殖。

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《钢铁研究学报（英文版）》 |2002年第1期|46-49|共4页
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Tsinghua University, Beijing 100084, China;

Tsinghua University, Beijing 100084, China;

Tsinghua University, Beijing 100084, China;

Tsinghua University, Beijing 100084, China;

Tsinghua University, Beijing 100084, China;

Tsinghua University, Beijing 100084, China;

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正文语种 chi
中图分类金属材料;
关键词
carbide free bainite/martensite mixed microstructure; tempering; strength; toughness;

机译：无碳化物贝氏体/马氏体混合组织;回火;强度;韧性;

Effect of Tempering Temperature on Strength and Toughness of Novel Carbide-Free Bainite/Martensite Duplex Phase Steel

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