The Influence of Heat Treatment on Microstructure and Properties of 00Cr15Ni7Mo2Cu2 Supermarteniste Stainless Steel

Abstract:

There are lath martensite and a little austenite in the microstructure of samples quenched. The original austenite grain sizes ranges from 7.9μm to 74.1μm, which grows up gradually with the increasing of temperature quenching. So do the martensite acicular bundle. During the process of tempering at different temperatures after quenching at 1050°C, austenite grain size becomes bigger with the temperature increasing, and martensite acicular bundle becomes thinner. The content of austenite ascends to the peak at 650°C then it decreases. The mechanical properties (σb =958.87 MPa, δ=20.44%, HRC=30.9) of the samples are the best, when quenching temperature is 1050°C and tempering temperature is 600°C.

• Periodical: Advanced Materials Research (Volumes 399-401)
• Pages: 211-215
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.399-401.211
• Online since: November 2011
• Authors: Yong Heng Zhou, Kun Yu Zhao, Xin Liu, Dong Ye, Wen Jiang, Qi Long Yong, Jie Su
• Keywords: Comprehensive Properties, Quenching, Supermartensite Stainless Steel, Tempering

References

[1] Yue Jiang: The Design Of Alloying And The Microstructure And Property Of Margaing Stainless Steel (Harbin Institute of Technology Press, Harbin 2007) (in chinese).

[2] Yi Zhang: Acta Metallurgica Sinica. Vol.18(4) (1982),p.395(in chinese).

[3] Xiaoyu LI, Ya WANG, Bing DU: Welding & Joining. Issue.(10) (2007),p.47(in chinese).

[4] Pei Wang, Shanping LU, Dianzhong LI: Acta Metallurgica Sinica. Vol.44(6) (2008),p.681(in chinese).

[5] Jing Zhu, Yingwei Zhao, Tianxi Pan and Qigong Cai: Iron And Steel. Vol.16(8) (1981),p.41(in chinese).