NDLI: Structural refinement of 00Cr13Ni5Mo2 supermartensitic stainless steel during single-stage intercritical tempering

Content Provider	Springer Nature Link
Author	Xu, Da kun Liu, Yong chang Ma, Zong qing Li, Hui jun Yan, Ze sheng
Copyright Year	2014
Abstract	The 00Cr13Ni5Mo2 supermartensitic stainless steel was first tempered at 570–730°C for 2 h to observe the microstructure and hardness changes. The tempering temperature was set to 600, 650, and 700°C, which is below, equal to, and above the austenite transformation start temperature, respectively, for each holding period to investigate the effects of tempering time on the structure and properties of the steel. The microstructure of the specimens was examined by optical microscopy and transmission electronic microscopy, and the phase composition was detected by X-ray diffraction. As expected, lath refinement was observed in the steel tempered at 700°C, and the refinement degree significantly depended on the tempering time. Contrary to normal steel softening by tempering, the hardness performance of the steel was significantly enhanced primarily because of the refinement of martensite laths after single-stage intercritical tempering. It is believed that the reverse transformation of martensite (α′) to austenite (γ) is responsible for the refinement.
Starting Page	279
Ending Page	288
Page Count	10
File Format	PDF
ISSN	16744799
Journal	International Journal of Minerals, Metallurgy, and Materials
Volume Number	21
Issue Number	3
e-ISSN	1869103X
Language	English
Publisher	University of Science and Technology Beijing
Publisher Date	2014-03-11
Publisher Place	Beijing
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	stainless steel tempering retained austenite phase transitions Materials Science Metallic Materials Characterization and Evaluation of Materials Ceramics, Glass, Composites, Natural Methods Surfaces and Interfaces, Thin Films Tribology, Corrosion and Coatings
Content Type	Text
Resource Type	Article
Subject	Materials Chemistry Mechanics of Materials Metals and Alloys Geochemistry and Petrology Mechanical Engineering

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