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Relationship Between Diameter of Tensile Specimen and Grain Size for TA6V Castings

  • Fuhui Gao
  • Min Li
  • Pan Ding
Conference paper

Abstract

This paper studied the effect of wall thickness and specimen diameter on the mechanical property of TA6V castings. Grain size on the cross section of test pieces after testing was analyzed by optical metallography and fractography was observed by scanning electron microscopy. The results show that grain size grown up with the increasing thickness, meanwhile tensile strength and yield strength improved with the increasing thickness and specimen diameter. The diameter selection of tensile specimen should depend on the castings grain size. The crack initiates at the center of specimen and the fracture mechanism is brittle transcrystalline rupture.

Keywords

TA6V castings Tensile property Grain size Diameter of specimen 

References

  1. 1.
    Liu Zhenjun, Yue Chunhua, Zhang Guobao, Bai Shihong and WANG Honghong, Research on Strength of Reinforced Investment Casting Shell, Foundry Technology. 28 (2007) 950–954.Google Scholar
  2. 2.
    Li Yi, Research on Investment Precision Casting Process of Large Thin Wall Complex Ti-6Al-4V Alloy, Titanium. 29 (2012) 22–25.Google Scholar
  3. 3.
    Jia Limin, Xu Daming, Guo Jingjie, ai Shihong and Wang Honghong, Effect of cooling rate on structure and tensile strength of centrifugally cast TC4 alloy in ceramic-shell mold, The Chinese Journal of Nonferrous Metals. 20 (2010) 667–673.Google Scholar
  4. 4.
    Feng Zhihua, Wang Honghong, Xie Chengmu and Yan Yuanlin, Effect of Heat Processing on Titanium Alloy (Ti-6Al-4V) Casting Residual Stress, Journal of Aeronautical Materials. 25 (2005) 25–27.Google Scholar
  5. 5.
    Wang Huigai, Leng Wencai, Li Shuangxiao and Chen Mingye, Effects of Heat Treatment Process on Microstructure and Mechanical Properties of TC4 Alloy, Material & Heat Treatment. 40 (2011) 181–183.Google Scholar
  6. 6.
    Chen Ying-xu, Shang Guan Xiao-feng, Ma Li, Investigation on Tensile Failure Mechanism of As-cast Ti-6Al-4V Titanium Ally. 30 (2009) 31–33.Google Scholar
  7. 7.
    Jia Limin, Experimental analysis on solidified structures and mechanical properties of centrifugal precision titanium castings. Dissertation for the Master Degrees in Engineering of Harbin Institute of Technology (2006).Google Scholar
  8. 8.
    Pu Xiao-ni, LI Li, Guo Zi-Jing, Li Qing, Influence of Specimen Diameters on Tensile Properties of TC4 Titanium Alloy, PTCA (PART A: PHYS. TEST.). 51 (2015) 248–255.Google Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2018

Authors and Affiliations

  1. 1.Baimtec Material Co., Ltd.BeijingChina

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