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Elasto-Plastic Properties Of Mo-Modified Ti Deduced From Indentation Tests And Finite Element Analysis

Author

Listed:
  • YONG MA

    (Research Institute of Surface Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China)

  • ZHAO YANG

    (Research Institute of Surface Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China)

  • SHENGWANG YU

    (Research Institute of Surface Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China)

  • BING ZHOU

    (Research Institute of Surface Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China)

  • HONGJUN HEI

    (Research Institute of Surface Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China)

  • NAIMING LIN

    (Research Institute of Surface Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China)

  • BIN TANG

    (Research Institute of Surface Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China)

Abstract

The aim of this paper is to establish an approach to quantitatively determine the elasto-plastic parameters of the Mo-modified Ti obtained by the plasma surface alloying technique. A micro-indentation test is conducted on the surface under 10N. Considering size effects, nanoindentation tests are conducted on the cross-section with two loads of 6 and 8mN. Assuming nanoindentation testing sublayers are homogeneous, finite element reverse analysis is adopted to determine their plastic parameters. According to the gradient distributions of the elasto-plastic parameters with depth in the Mo-modified Ti, two types of mathematical expressions are proposed. Compared with the polynomial expression, the linear simplified expression does not need the graded material to be sectioned and has practical utility in the surface treatment industry. The validation of the linear simplified expression is verified by the micro-indentation test and corresponding finite element forward analysis. This approach can assist in improving the surface treatment process of the Mo-modified Ti and further enhancing its load capacity and wear resistance.

Suggested Citation

  • Yong Ma & Zhao Yang & Shengwang Yu & Bing Zhou & Hongjun Hei & Naiming Lin & Bin Tang, 2019. "Elasto-Plastic Properties Of Mo-Modified Ti Deduced From Indentation Tests And Finite Element Analysis," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 26(07), pages 1-11, August.
    • Handle: RePEc:wsi:srlxxx:v:26:y:2019:i:07:n:s0218625x18502256
    DOI: 10.1142/S0218625X18502256
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