DataVXScience and Technology of Welding and JoiningPaper
journal article·2017-04

Microstructure and fatigue properties of linear friction welded TC4 titanium alloy joints

S. Q. Wang, T. J. Ma, W. Y. Li, G. D. Wen, D. L. Chen

Science and Technology of Welding and Joining· Volume 22· Issue 3
Publisher page
Source abstract

Abstract

The welded joints are often subjected to cyclic stresses and high-strain-rate deformation resulting in worrisome fatigue failure. Therefore, it is necessary to evaluate the fatigue resistance and cyclic deformation characteristics of these weldments. Ti–6Al–4V–0.3Fe–0.1C–0.05N–0.015H–0.2O (TC4) titanium alloy joints were produced via linear friction welding and a sound joint was obtained. It was observed that fine subgrains formed in the weld zone where the hardness became higher. The strain ratio had a strong effect on the cyclic deformation characteristics of the joint, with hysteresis loops being different at different strain ratios. However, the difference of fatigue life of the joint was small with varying strain ratios. The stress amplitude of linear friction welded TC4 joint showed essentially cyclic softening until failure at all strain ratios. Fatigue cracks initiated from the near-surface of base metal and propagated by the formation of fatigue striations together with secondary cracks.
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Research context

Metals & alloys

OpenAlex topics: Advanced Welding Techniques Analysis · Titanium Alloys Microstructure and Properties · Intermetallics and Advanced Alloy Properties

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

School of Materials Science and Engineering, Xi'an Shiyou University, Xi'an 710065, Shaanxi, PR China

State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi'an 710072, Shaanxi, PR China

Xi'an Research Institute of China Coal Technology & Engineering Group, Xi'an 710077, Shaanxi, PR China

Department of Mechanical and Industrial Engineering, Ryerson University, Toronto M5B 2K3, Ontario, Canada

Funding

National Natural Science Foundation of China · the State Key Laboratory of Solidification Processing in Northwestern Polytechnical University

References (21)

Show source-provided references
1. 10.1016/j.scriptamat.2011.09.01810.1016/j.scriptamat.2011.09.018 ↗
2. 10.1016/j.actamat.2010.03.03610.1016/j.actamat.2010.03.036 ↗
3. 10.1007/s11661-005-0335-510.1007/s11661-005-0335-5 ↗
4. 10.1016/j.matchar.2010.11.00910.1016/j.matchar.2010.11.009 ↗
5. 10.1016/j.msea.2006.12.09510.1016/j.msea.2006.12.095 ↗
6. 10.1002/adem.20070003410.1002/adem.200700034 ↗
7. 10.1016/S0921-5093(99)00449-910.1016/S0921-5093(99)00449-9 ↗
8. 10.25103/jestr.011.0610.25103/jestr.011.06 ↗
9. 10.1016/j.actamat.2011.02.02810.1016/j.actamat.2011.02.028 ↗
10. 10.1016/j.commatsci.2010.03.02610.1016/j.commatsci.2010.03.026 ↗
11. 10.1179/174328408X33282510.1179/174328408X332825 ↗
12. 10.1080/1023816041000173463010.1080/10238160410001734630 ↗
13. Fu P. F. · Technology and Innovation Conference · 2006 · 72
14. 10.1016/j.matdes.2013.02.03410.1016/j.matdes.2013.02.034 ↗
15. 10.1016/j.msea.2013.07.00910.1016/j.msea.2013.07.009 ↗
16. 10.1016/j.msea.2014.01.02210.1016/j.msea.2014.01.022 ↗
17. 10.1016/1359-6462(96)00130-310.1016/1359-6462(96)00130-3 ↗
18. 10.1016/j.msea.2014.06.01010.1016/j.msea.2014.06.010 ↗
19. 10.1016/j.msea.2014.01.00610.1016/j.msea.2014.01.006 ↗
20. 10.1016/j.msea.2011.02.01310.1016/j.msea.2011.02.013 ↗
21. 10.1016/j.actbio.2007.09.00910.1016/j.actbio.2007.09.009 ↗