+Advanced Search
Effect of crystallographic orientation on nano-indentation behaviors of Nickel based single crystal super alloys
Author:
Affiliation:

Department of Engineering Mechanics,School of Mechanics,Civil Engineering and Architecture,Northwestern Polytechnical University,Xi’an,Shaanxi,PR China

Clc Number:

Fund Project:

National Natural Science Foundation of China (Grant No. 51905432), Natural Science Basic Research Program of Shaanxi (Program No. 2018JQ1030), Aeronautical Science Foundation of China (Program No. 2016ZD53036), and the Fundamental Research Funds of the Central Universities (Program No. 310201906zy002).

  • Article
  • |
  • Figures
  • |
  • Metrics
  • |
  • Reference
  • |
  • Related
  • |
  • Cited by
  • |
  • Materials
  • |
  • Comments
    Abstract:

    In order to investigate the effect of crystallographic orientation on the nano-indentation behaviors of single crystal super alloys, the nano-indentation experiments with a Berkovich indenter in an atomic force microscope were carried out on [001], [011] and [111] oriented Nickel based single crystal super alloys. Experimental results showed that the indentation load-depth curve, hardness and elastic modulus were remarkably influenced by crystallographic orientation. It is found that the shape and volume fraction of γ^" strengthening phase is dependent on crystallographic orientation, which will influence the mechanical properties. The nano-indentation experiments performed on three typical crystallographic orientations were simulated by using crystal plasticity theory to investigate the indentation responses and the resolved shear stress induced by indentation, and the simulation results showed a good agreement with the experiment results.

    Reference
    Related
    Cited by
Get Citation

[Yan Wuzhu, Li Youliang, Wen Zhixun, Zou Shaohua, Duan Zuhang. Effect of crystallographic orientation on nano-indentation behaviors of Nickel based single crystal super alloys[J]. Rare Metal Materials and Engineering,2020,49(6):1854~1859.]
DOI:10.12442/j. issn.1002-185X.20190739

Copy
Article Metrics
  • Abstract:
  • PDF:
  • HTML:
  • Cited by:
History
  • Received:September 11,2019
  • Revised:April 28,2020
  • Adopted:December 12,2019
  • Online: July 09,2020
  • Published: