Improving the tensile and fatigue crack growth properties of SLM Ti-6Al-4V alloy by heat treatment and ultrasonic surface rolling process

被引：0

作者：

Liu S. ^{[1
]}

Ye H. ^{[2
]}

机构：

[1] Shanhu Construction Group Co. Ltd., Nanchang University, Nanchang

[2] School of Mechanical and Electrical Engineering, Nanchang University, Nanchang

来源：

Ye, Han (yehan@ncu.edu.cn) | 1600年 / Inderscience Publishers卷 / 10期

关键词：

fatigue crack growth properties; heat treatment; tensile behaviour; ultrasonic surface rolling process;

D O I：

10.1504/IJCMSSE.2021.121372

中图分类号：

学科分类号：

摘要：

This paper mainly studies the effects of heat treatment (HT) and ultrasonic surface rolling process (USRP) on the tensile property and fatigue crack growth resistance of SLM Ti-6Al-4V alloy. The results show that heat treatment improves the elongation of the material from 3.8% to 16.5%, but the yield strength reduces from 1280 MPa to 1120 MPa. The USRP treatment increases the yield strength of the sample to 1590MPa but reduces the already poor ductility to 2.55%. This work proves that the tensile properties, the fatigue crack growth resistance, and the fatigue life of SLM Ti-6Al-4V alloy can be significantly improved or even exceed the corresponding level of wrought Ti-6Al-4V alloy by combining HT and USRP with appropriate process parameters. Copyright © 2021 Inderscience Enterprises Ltd.

引用

页码：149 / 164

页数：15

共 27 条

[1]

Ali H., Ma L., Ghadbeigi H., Mumtaz K., In-situ residual stress reduction, martensitic decomposition and mechanical properties enhancement through high temperature powder bed pre-heating of selective laser melted Ti-6Al-4V, Mater. Sci. Eng. A, 695, pp. 211-220, (2017)

[2]

Campbell T., Williams C., Ivanova O., Garrett B., Could 3D printing change the world, technologies, potential, and implications of additive manufacturing, (2011)

[3]

Fan W., Tan H., Lin X., Huang W., Thermal analysis of synchronous induction-assisted laser deposition of Ti-6Al-4V using different laser-induction interaction modes, Addit. Manuf, 35, pp. 2214-8604, (2020)

[4]

Fan Z., Feng H., Study on selective laser melting and heat treatment of Ti-6Al-4V alloy, Res. Phys, 10, pp. 660-664, (2018)

[5]

Gibson I., Rosen D., Stucker B., Additive Manufacturing Technologies, (2010)

[6]

Huang Q., Liu X., Yang X., Zhang R., Shen Z., Feng Q., Specific heat treatment of selective laser melted Ti-6Al-4V for biomedical applications, Front. Mater. Sci, 9, pp. 373-381, (2015)

[7]

Katzarov I., Malinov S., Sha W., Finite element modeling of the morphology of b to a phase transformation in Ti-6Al-4V alloy, Metall. Mater. Trans. A, 33, pp. 1027-1040, (2002)

[8]

Liu C.S., Liu D.X., Zhang X.H., Yu S.M., Zhao W.D., Effect of the ultrasonic surface rolling process on the fretting fatigue behaviour of Ti-6Al-4V alloy, Mater, 10, 7, pp. 1-12, (2017)

[9]

Lu Y., Aristizabal M., Wang X., Pang B., The influence of heat treatment on the microstructure and properties of HIPed Ti-6Al-4V, Acta Mater, 165, pp. 520-527, (2019)

[10]

Mohamed D.N., Robert T., Thorsten B., Fatigue and fracture toughness of Ti-6Al-4V titanium alloy manufactured by selective laser melting, Adv. Mater. Res, 1019, pp. 248-253, (2014)

← 1 2 3 →