Review of Techniques for Evaluating the Uniaxial Tensile Properties and Fracture Toughness of Ductile Metallic Materials Based on Micron Indentation

doi:10.3901/JME.2023.02.051

Abstract

Abstract: Micrometer indentation technology has been able to achieve quasi-nondestructive testing of the mechanical properties of ductile metal materials. Compared with the traditional mechanical properties testing methods, this technology can not only realize the quasi-nondestructive evaluation of mechanical properties of micro-scale complex structures such as welded joints and additive repair interfaces, but also be used for monitoring the mechanical properties of in-service equipment important components, which provides a basis of their safety warning and life prediction. The current research status of uniaxial tensile properties and fracture toughness evaluation technology based on micron indentation technology is summarized systematically. First of all, the basic principles and technical lines of various evaluation models are presented completely, and the advantages and limitations of different evaluation models are analysed systematically. Secondly, the standards and guidelines for micrometer indentation technology are summarized.After that the problems and challenges of micrometer indentation technology are discussed from the perspectives of both theoretical studies and engineering applications, respectively. Finally, the development and application trends of micron indentation mechanical properties testing technology are prospected.

Key words: micron indentation, metal material, tensile mechanical property, fracture toughness

CLC Number:

TG156

ZHAO Geng, FANG Jinxiang, ZHANG Xiancheng. Review of Techniques for Evaluating the Uniaxial Tensile Properties and Fracture Toughness of Ductile Metallic Materials Based on Micron Indentation[J]. Journal of Mechanical Engineering, 2023, 59(2): 51-68.

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