Xiongmian Wei, Di Wang, Yongqiang Yang, Changjun Han, Jie Chen, Yunmian Xiao, Xin Zhou, Xinglong Wang, Cheng Deng, Yingjun Wang. Study on Tensile Properties of Titanium Alloy Porous Structure Using Selective Laser Melting[J]. Chinese Journal of Lasers, 2021, 48(18): 1802016
- Chinese Journal of Lasers
- Vol. 48, Issue 18, 1802016 (2021)
Fig. 1. Tensile specimen with porous structure. (a) Unit body; (b) stretching piece size; (c) porous tensile piece
![SLM manufacturing equipment and principle[26]](/richHtml/zgjg/2021/48/18/1802016/img_2.jpg)
Fig. 2. SLM manufacturing equipment and principle[26]
Fig. 3. Tensile specimen after forming. (a) Before cutting; (b) after turning
Fig. 4. Structural parameters of tensile specimens after forming. (a) Internal condition; (b) optical microstructure
Fig. 5. Simulated stress-strain curves of porous structure. (a) BCC; (b) BCCZ; (c) honeycomb; (d) stress nephogram of 70% strain
Fig. 6. Simulated tensile strength of porous structure and its fitting curves with porosity. (a) Simulated tensile strength; (b) fitting curves
Fig. 7. Experimental stress-strain curves of porous structure. (a) BCC; (b) BCCZ; (c) honeycomb
Fig. 8. Mechanical properties of porous structure with different porosity. (a) Experimental tensile strength; (b) experimental yield strength; (c) experimental modulus of elasticity; (d) experimental tensile strength fitting curves; (e) specific strength
Fig. 9. Fracture position of porous tensile specimen. (a) BCC; (b) BCCZ; (c) honeycomb
Fig. 10. Fracture morphology of porous tensile specimen. (a)(b)(c) BCC-20%; (d) BCCZ-50%; (e)(f) BCC-50%
Fig. 11. Stress-strain curves of porous tensile parts under different conditions. (a) (b) BCC; (c) (d) BCCZ; (e) (f) honeycomb
Fig. 12. Connective sections of porous structures. (a) Minimum cross section; (b) cross section variation; (c) fitting curves of cross section variation
|
Table 1. Designed size and actual size of porous structure
|
Table 2. Powder composition of Ti-6Al-4V
|
Table 3. Process parameters of Ti-6Al-4V powder
Set citation alerts for the article
Please enter your email address
© Copyright 2018-2021 | Chinese Laser Press. All Rights Reserved 沪ICP备15018463号-20