NDLI: Effect of Mo on mechanical properties of modified ultrahigh carbon steels after heat-treatment

Content Provider	Springer Nature Link
Author	Li, Lei Hu, Bin Liu, Sheng gen Liu, Hua shan Zheng, Feng
Copyright Year	2014
Abstract	Microstructure and mechanical properties of modified ultrahigh carbon (1.6%C) steels with different Mo additions (0, 0.3%, 0.5%, and 0.8%, mass fraction) were studied in their as-cast and quenched then tempered conditions by optical microscopy, scanning electronic microscopy, X-ray diffraction and hardness and toughness tests, respectively. The results show that the continuous eutectic carbide network structure has been broken down and changed to partial isolated and finer particles embedded in matrix of as-cast alloy by modification. Carbides in both quenched and tempered specimens have been refined effectively after the addition of Mo. Specimen containing 0.5% Mo shows the finest microstructures with carbides dispersed homogeneously in martensite matrix and demonstrates highest impact toughness of 18.4 J/cm$^{2}$ and hardness of 50 HRC.
Starting Page	1683
Ending Page	1688
Page Count	6
File Format	PDF
ISSN	20952899
Journal	Journal of Central South University of Technology
Volume Number	21
Issue Number	5
e-ISSN	22275223
Language	English
Publisher	Central South University
Publisher Date	2014-05-15
Publisher Place	Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	ultrahigh carbon steel molybdenum microstructure impact toughness hardness Engineering Metallic Materials
Content Type	Text
Resource Type	Article
Subject	Metals and Alloys Engineering

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Effect of Mo on mechanical properties of modified ultrahigh carbon steels after heat-treatment