Preprint Article Version 1 This version is not peer-reviewed

Impact-Sliding Tribology Behavior of TC17 Alloy Treated by Laser Shock Peening

Version 1 : Received: 7 June 2018 / Approved: 7 June 2018 / Online: 7 June 2018 (15:13:24 CEST)

A peer-reviewed article of this Preprint also exists.

Yin, M.; Wang, W.; He, W.; Cai, Z. Impact-Sliding Tribology Behavior of TC17 Alloy Treated by Laser Shock Peening. Materials 2018, 11, 1229. Yin, M.; Wang, W.; He, W.; Cai, Z. Impact-Sliding Tribology Behavior of TC17 Alloy Treated by Laser Shock Peening. Materials 2018, 11, 1229.

Journal reference: Materials 2018, 11, 1229
DOI: 10.3390/ma11071229

Abstract

Outer particles collision with certain dynamic object is not a pure impact wear behavior; it is typically accompanied by sliding wear phenomena. This study aimed investigating the impact-sliding wear performance of three different TC17 titanium alloys. One was untreated, and the other two were subjected to laser shock peening (LSP) by 5 and 7 J pulse energy, respectively. Wear test was performed on a novel impact-sliding wear testing rig, which can realize multiple impact-sliding motions by changing motion parameters in x and z directions. Present results showed that wear resistance of both treated samples improved compared with the untreated alloy. Given the increase in wear cycles, increment in wear rate of the untreated sample was constantly higher than those of treated samples. All results can be attributed to the increase in surface hardness of the material and residual compressive stress, which was also introduced after LSP.

Subject Areas

Impact-sliding wear; Titanium alloy; Laser shock peening; Wear rate

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