Improving effects of cavitation peening, using a pulsed laser or a cavitating jet, and shot peening on the fatigue properties of additively manufactured titanium alloy Ti6Al4V
Improving effects of cavitation peening, using a pulsed laser or a cavitating jet, and shot peening on the fatigue properties of additively manufactured titanium alloy Ti6Al4V
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DOI：
10.1016/j.surfcoat.2022.129047
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发表时间：
2022-11-15
影响因子：
5.4
通讯作者：
Kuji, Chieko
中科院分区：
文献类型：
--
作者：
Soyama, Hitoshi;Kuji, Chieko
为了证明和比较空蚀喷丸和喷丸对增材制造金属疲劳性能的改善效果，通过直接金属激光烧结制备的钛合金Ti6Al4V试样通过空蚀喷丸处理，使用脉冲激光或浸没高速空蚀水射流和喷丸处理，随后进行扭转疲劳试验。结果表明，空化喷丸，使用激光，喷丸，和空化喷丸，使用空化射流的AM Ti6Al4V的疲劳寿命延长在τ a（施加应力）= 450 MPa的因素分别为3.5，3.2，和1.4。
To demonstrate and compare the improving effects of cavitation peening and shot peening on the fatigue properties of additively manufactured metals, titanium alloy Ti6Al4V specimens prepared by direct metal laser sintering were treated by cavitation peening, using a pulsed laser or a submerged high-speed cavitating water jet, and shot peening and, subsequently, subjected to torsion fatigue tests. It was revealed that cavitation peening using a laser, shot peening, and cavitation peening using a cavitating jet prolong the fatigue life of AM Ti6Al4V at tau a (applied stress) = 450 MPa by factors of 3.5, 3.2, and 1.4, respectively.