Carbide-free tempered martensitic steels and preparation methods thereof

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PATENT NO 12215404
SERIAL NO

18401294

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The embodiments of the present disclosure provide a carbide-free tempered martensitic steel and a preparation method thereof. The carbide-free tempered martensitic steel includes a martensite matrix without carbide and a retained austenite distributed between the martensite matrix obtained after tempering or partitioning. A size of retained austenite is submicron or nanoscale, a morphology of retained austenite includes at least one of sphere, block, or film, and a volume fraction of the retained austenite is in a range of 10%-40%.

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Patent Owner(s)

  • BEIJING INSTITUTE OF TECHNOLOGY

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cheng, Xingwang Beijing, CN 3 0
Xiong, Zhiping Beijing, CN 2 2
Yang, Dezhen Beijing, CN 1 0
Zhang, Chao Beijing, CN 580 7261
Zhang, Hao Beijing, CN 1170 5565

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