J. Mater. Sci. Technol. ›› 2019, Vol. 35 ›› Issue (2): 403-408.DOI: 10.1016/j.jmst.2018.10.031
• Orginal Article • Previous Articles
Yafei Wangab, Rui Chenab, Xu Chengab, Yanyan Zhuab*(), Jikui Zhangac, Huaming Wangab
Received:
2018-08-07
Revised:
2018-10-18
Accepted:
2018-10-21
Online:
2019-02-05
Published:
2018-12-21
Contact:
Zhu Yanyan
About author:
These authors contributed equally to this work.
Yafei Wang, Rui Chen, Xu Cheng, Yanyan Zhu, Jikui Zhang, Huaming Wang. Effects of microstructure on fatigue crack propagation behavior in a bi-modal TC11 titanium alloy fabricated via laser additive manufacturing[J]. J. Mater. Sci. Technol., 2019, 35(2): 403-408.
Fig. 3. Grain morphology (a) and bi-modal microstructure (b) of the LAM TC11 alloy, detailed microstructures in the equiaxed grain region (c) and the columnar grain region (d).
Fig. 8. (a) The fatigue cracks grow parallel to the α lamellae; (b) fatigue cracks grow along the phase interface; and (c) fatigue cracks grow along the α cluster.
Fig. 9. EBSD maps in the equiaxed (a) and columnar grains (b) showing the crack propagation route along the grain boundary and schematic of the crack propagation route in the E sample (c) and the E-C sample (d).
Fig. 10. Microstructures of the LAM TC11 showing the HAB (a) and the difference in the microstructures between the HAB (c) and the remainder of the alloy (b).
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