High temperature thermo-mechanical treatment of novel ultra-high-strength steel

Shi Meng Zhou; Xing Wang Cheng; You Jing Zhang; Wen Jiang; Meng Wang; Pei Wang; Hong Nian Cai

doi:10.11868/j.issn.1001-4381.2016.05.006

High temperature thermo-mechanical treatment of novel ultra-high-strength steel

Shi Meng Zhou, Xing Wang Cheng^*, You Jing Zhang, Wen Jiang, Meng Wang, Pei Wang, Hong Nian Cai

^*Corresponding author for this work

School of Material Science and Engineering

Beijing Institute of Technology

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

A method of high temperature thermo-mechanical treatment (TMT) and subsequent cold (heat) treatment was applied to a novel ultra-high-strength steel (G33 steel). The effect of different process parameters on microstructure and mechanical properties of quasi-static (10^-3s^-1) tensile samples of G33 steel was investigated. The results show that the optimum treatment process of G33 steel is high temperature (1078℃) TMT with 50% deformation + cooled at -73℃ for 1h + tempered at 200℃ for 2h, and after the process, the yield strength of G33 steel is 1685MPa, the ultimate tensile strength is 2130MPa, and the total elongation is 14.0%.

Original language	English
Pages (from-to)	37-41
Number of pages	5
Journal	Cailiao Gongcheng/Journal of Materials Engineering
Volume	44
Issue number	5
DOIs	https://doi.org/10.11868/j.issn.1001-4381.2016.05.006
Publication status	Published - 20 May 2016

Keywords

Thermo-mechanical treatment
Total elongation
Ultra-high-strength steel
Yield strength

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10.11868/j.issn.1001-4381.2016.05.006

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title = "High temperature thermo-mechanical treatment of novel ultra-high-strength steel",

abstract = "A method of high temperature thermo-mechanical treatment (TMT) and subsequent cold (heat) treatment was applied to a novel ultra-high-strength steel (G33 steel). The effect of different process parameters on microstructure and mechanical properties of quasi-static (10-3s-1) tensile samples of G33 steel was investigated. The results show that the optimum treatment process of G33 steel is high temperature (1078℃) TMT with 50% deformation + cooled at -73℃ for 1h + tempered at 200℃ for 2h, and after the process, the yield strength of G33 steel is 1685MPa, the ultimate tensile strength is 2130MPa, and the total elongation is 14.0%.",

keywords = "Thermo-mechanical treatment, Total elongation, Ultra-high-strength steel, Yield strength",

author = "Zhou, {Shi Meng} and Cheng, {Xing Wang} and Zhang, {You Jing} and Wen Jiang and Meng Wang and Pei Wang and Cai, {Hong Nian}",

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doi = "10.11868/j.issn.1001-4381.2016.05.006",

language = "English",

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T1 - High temperature thermo-mechanical treatment of novel ultra-high-strength steel

AU - Zhou, Shi Meng

AU - Cheng, Xing Wang

AU - Zhang, You Jing

AU - Jiang, Wen

AU - Wang, Meng

AU - Wang, Pei

AU - Cai, Hong Nian

PY - 2016/5/20

Y1 - 2016/5/20

N2 - A method of high temperature thermo-mechanical treatment (TMT) and subsequent cold (heat) treatment was applied to a novel ultra-high-strength steel (G33 steel). The effect of different process parameters on microstructure and mechanical properties of quasi-static (10-3s-1) tensile samples of G33 steel was investigated. The results show that the optimum treatment process of G33 steel is high temperature (1078℃) TMT with 50% deformation + cooled at -73℃ for 1h + tempered at 200℃ for 2h, and after the process, the yield strength of G33 steel is 1685MPa, the ultimate tensile strength is 2130MPa, and the total elongation is 14.0%.

AB - A method of high temperature thermo-mechanical treatment (TMT) and subsequent cold (heat) treatment was applied to a novel ultra-high-strength steel (G33 steel). The effect of different process parameters on microstructure and mechanical properties of quasi-static (10-3s-1) tensile samples of G33 steel was investigated. The results show that the optimum treatment process of G33 steel is high temperature (1078℃) TMT with 50% deformation + cooled at -73℃ for 1h + tempered at 200℃ for 2h, and after the process, the yield strength of G33 steel is 1685MPa, the ultimate tensile strength is 2130MPa, and the total elongation is 14.0%.

KW - Thermo-mechanical treatment

KW - Total elongation

KW - Ultra-high-strength steel

KW - Yield strength

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High temperature thermo-mechanical treatment of novel ultra-high-strength steel

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Keywords

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