Superior Wear Resistance in EBM-Processed TC4 Alloy Compared with SLM and Forged Samples

Weiwen Zhang; Peiting Qin; Zhi Wang; Chao Yang; Lauri Kollo; Dariusz Grzesiak; Konda Gokuldoss Prashanth

doi:10.3390/ma12050782

Superior Wear Resistance in EBM-Processed TC4 Alloy Compared with SLM and Forged Samples

Materials (Basel). 2019 Mar 7;12(5):782. doi: 10.3390/ma12050782.

Authors

Weiwen Zhang^{1

2}, Peiting Qin^{3

4}, Zhi Wang^{5

6}, Chao Yang^{7

8}, Lauri Kollo⁹, Dariusz Grzesiak¹⁰, Konda Gokuldoss Prashanth^{11

12}

Affiliations

¹ Guangdong Key Laboratory for Processing and Forming of Advanced Metallic Materials, South China University of Technology, Guangzhou 510640, China. mewzhang@scut.edu.cn.
² National Engineering Research Center of Near-net-shape Forming for Metallic Materials, South China University of Technology, Guangzhou 510640, China. mewzhang@scut.edu.cn.
³ Guangdong Key Laboratory for Processing and Forming of Advanced Metallic Materials, South China University of Technology, Guangzhou 510640, China. 201720101729@mail.scut.edu.cn.
⁴ National Engineering Research Center of Near-net-shape Forming for Metallic Materials, South China University of Technology, Guangzhou 510640, China. 201720101729@mail.scut.edu.cn.
⁵ Guangdong Key Laboratory for Processing and Forming of Advanced Metallic Materials, South China University of Technology, Guangzhou 510640, China. Wangzhi@scut.edu.cn.
⁶ National Engineering Research Center of Near-net-shape Forming for Metallic Materials, South China University of Technology, Guangzhou 510640, China. Wangzhi@scut.edu.cn.
⁷ Guangdong Key Laboratory for Processing and Forming of Advanced Metallic Materials, South China University of Technology, Guangzhou 510640, China. cyang@scut.edu.cn.
⁸ National Engineering Research Center of Near-net-shape Forming for Metallic Materials, South China University of Technology, Guangzhou 510640, China. cyang@scut.edu.cn.
⁹ Department of Mechanical and Industrial Engineering, Tallinn University of Technology, Ehitajete tee 5, 19086 Tallinn, Estonia. lauri.kollo@taltech.ee.
¹⁰ Department of Mechanical Engineering and Mechatronics, West Pomeranian University of Technology, Aleja Piastów 17, 70-310 Szczecin, Poland. dariusz.grzesiak@zut.edu.pl.
¹¹ Department of Mechanical and Industrial Engineering, Tallinn University of Technology, Ehitajete tee 5, 19086 Tallinn, Estonia. prashanth.konda@taltech.ee.
¹² Erich Schmid Institute of Materials Science, Austrian Academy of Sciences, Jahnstraße 12, A-8700 Leoben, Austria. prashanth.konda@taltech.ee.

Abstract

The wear properties of Ti-6Al-4V alloy have drawn great attention in both aerospace and biomedical fields. The present study examines the wear properties of Ti-6Al-4V alloy as prepared by selective laser melting (SLM), electron beam melting (EBM) and conventional forging processes. The SLM and EBM samples show better wear resistance than the forged sample, which correlates to their higher hardness values and weak delamination tendencies. The EBM sample shows a lower wear rate than the SLM sample because of the formation of multiple horizontal cracks in the SLM sample, which results in heavier delamination. The results suggest that additive manufacturing processes offer significantly wear-resistant Ti-6Al-4V specimens in comparison to their counterparts produced by forging.

Keywords: Ti-6Al-4V; additive manufacturing; properties; wear.

Abstract

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