Effect of irradiation temperature on the nanoindentation behavior of P92 steel with thermomechanical treatment

Xi Huang; Yinzhong Shen; Qingshan Li; Xiaoyan Li; Zixiong Zhan; Guang Li; Zhenhe Li

Nuclear Engineering and Technology (Jul 2022)

Effect of irradiation temperature on the nanoindentation behavior of P92 steel with thermomechanical treatment

Xi Huang,
Yinzhong Shen,
Qingshan Li,
Xiaoyan Li,
Zixiong Zhan,
Guang Li,
Zhenhe Li

Affiliations

Xi Huang: School of Nuclear Science and Engineering, East China University of Technology, 418 Guanglan Road, Nanchang, 330013, China; School of Mechanical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
Yinzhong Shen: School of Mechanical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China; School of Materials Engineering, Shanghai University of Engineering Science, 333 Longteng Road, Shanghai, 201620, China; Corresponding author. School of Mechanical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China.
Qingshan Li: School of Mechanical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
Xiaoyan Li: School of Nuclear Science and Engineering, East China University of Technology, 418 Guanglan Road, Nanchang, 330013, China; Corresponding author. .
Zixiong Zhan: School of Nuclear Science and Engineering, East China University of Technology, 418 Guanglan Road, Nanchang, 330013, China
Guang Li: School of Nuclear Science and Engineering, East China University of Technology, 418 Guanglan Road, Nanchang, 330013, China
Zhenhe Li: School of Nuclear Science and Engineering, East China University of Technology, 418 Guanglan Road, Nanchang, 330013, China

Journal volume & issue: Vol. 54, no. 7
pp. 2408 – 2417

Abstract

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The nanoindentation behavior of P92 steel with thermomechanical treatment under 3.5 MeV Fe13+ ion irradiation at room temperature, 400 and 700 °C was investigated. Pop-in behavior is observed for all the samples with and without irradiation at room temperature, while the temperature dependence of pop-in behavior is only observed in irradiated samples. The average load and penetration depth at the onset of pop-in increase as the irradiation temperature increases, in line with the results of the maximum shear stress. Irradiation induced hardening is exhibited for all irradiated samples, but there is a significant reduction in the hardness of sample irradiated at 700 °C in comparison to the samples irradiated at room temperature and 400 °C. The ratio of hardness to elastic modulus for all samples decreases with increasing penetration depth except for samples at 700 °C. With the increasing of irradiation temperature, the ratio of the irreversible work to the total work gradually decreases. In contrast, it increases for samples without irradiation.

Published in Nuclear Engineering and Technology

ISSN: 1738-5733 (Print)
Publisher: Elsevier
Country of publisher: Korea, Republic of
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Nuclear engineering. Atomic power
Website: http://www.journals.elsevier.com/nuclear-engineering-and-technology

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