Tensile mechanical properties and brittle effect of austempered Cr-Mo alloy steel

Cheng Yi Chen, Fei-Yi Hung, Truan-Sheng Lui, Li Hui Chen

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This research used the austempering heat treatment on the SCM435 thin specimen with a type of double loop and obtained the Cr-Mo bainite structure, and then we could further investigate the mechanical properties of SCM435 bainite structure. Experimental data showed the stability of the mechanical properties of specimen with austempering temperature 830°C for 25 minutes was better than that of 15 minutes. The size of austenite grain affected the strength of thin specimen. After austempering at 830°C-25minutes and salt bath at 290°C, the stability of UTS was better than that of salt bath at 310°C and 330°C. The average hardness of all specimens was about more than HRA70. The specimen with austempering at 830°C-25minutes and salt bath at 290°C-30minutes had bigger grain size of austenite and retained γ, it also had higher hardness and strength toughness. So, its stability was improved for tensile strength comparing with traditional tempered martensite process.

Original languageEnglish
Title of host publication4th International Symposium on High-Temperature Metallurgical Processing - Held During the TMS 2013 Annual Meeting and Exhibition
Pages299-306
Number of pages8
Publication statusPublished - 2013 Apr 26
Event4th International Symposium on High-Temperature Metallurgical Processing - TMS 2013 Annual Meeting and Exhibition - San Antonio, TX, United States
Duration: 2013 Mar 32013 Mar 7

Publication series

NameTMS Annual Meeting

Other

Other4th International Symposium on High-Temperature Metallurgical Processing - TMS 2013 Annual Meeting and Exhibition
CountryUnited States
CitySan Antonio, TX
Period13-03-0313-03-07

Fingerprint

Alloy steel
salt baths
Bainite
Salts
steels
mechanical properties
Austenite
Mechanical properties
bainite
Hardness
austenite
baths
Martensite
hardness
Toughness
Tensile strength
Heat treatment
toughness
martensite
tensile strength

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys

Cite this

Chen, C. Y., Hung, F-Y., Lui, T-S., & Chen, L. H. (2013). Tensile mechanical properties and brittle effect of austempered Cr-Mo alloy steel. In 4th International Symposium on High-Temperature Metallurgical Processing - Held During the TMS 2013 Annual Meeting and Exhibition (pp. 299-306). (TMS Annual Meeting).
Chen, Cheng Yi ; Hung, Fei-Yi ; Lui, Truan-Sheng ; Chen, Li Hui. / Tensile mechanical properties and brittle effect of austempered Cr-Mo alloy steel. 4th International Symposium on High-Temperature Metallurgical Processing - Held During the TMS 2013 Annual Meeting and Exhibition. 2013. pp. 299-306 (TMS Annual Meeting).
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Chen, CY, Hung, F-Y, Lui, T-S & Chen, LH 2013, Tensile mechanical properties and brittle effect of austempered Cr-Mo alloy steel. in 4th International Symposium on High-Temperature Metallurgical Processing - Held During the TMS 2013 Annual Meeting and Exhibition. TMS Annual Meeting, pp. 299-306, 4th International Symposium on High-Temperature Metallurgical Processing - TMS 2013 Annual Meeting and Exhibition, San Antonio, TX, United States, 13-03-03.

Tensile mechanical properties and brittle effect of austempered Cr-Mo alloy steel. / Chen, Cheng Yi; Hung, Fei-Yi; Lui, Truan-Sheng; Chen, Li Hui.

4th International Symposium on High-Temperature Metallurgical Processing - Held During the TMS 2013 Annual Meeting and Exhibition. 2013. p. 299-306 (TMS Annual Meeting).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Chen CY, Hung F-Y, Lui T-S, Chen LH. Tensile mechanical properties and brittle effect of austempered Cr-Mo alloy steel. In 4th International Symposium on High-Temperature Metallurgical Processing - Held During the TMS 2013 Annual Meeting and Exhibition. 2013. p. 299-306. (TMS Annual Meeting).