大连理工大学主页平台管理系统付雪松 Investigation of shot peening combined with plasma-sprayed CuNiIn coating on the fretting fatigue behavior of Ti-6Al-4V dovetail joint specimens 中文主页

论文成果

Investigation of shot peening combined with plasma-sprayed CuNiIn coating on the fretting fatigue behavior of Ti-6Al-4V dovetail joint specimens: 点击次数：; 发布时间： 2019-03-13; 发布时间：2019-03-13; 论文类型：期刊论文; 发表时间：2019-01-25; 发表刊物：SURFACE & COATINGS TECHNOLOGY; 收录刊物：Scopus、SCIE; 卷号：358; 页面范围：833-842; ISSN号：0257-8972; 关键字：Ti-6Al-4V; Dovetail joint; CuNiIn coating; Shot peening; Fretting fatigue; 摘要：Dovetail joint specimens manufactured from the Ti-6Al-4V alloy were designed and used to investigate the fretting fatigue behavior of the blade/disk interface in gas turbine engines. Shot peening was combined with plasma-sprayed CuNiln coating to improve the fretting fatigue resistance of the specimens. The finite element models were used to analyze the contact stress distribution in the fretting area. A plastic layer was added to simulate the CuNiIn coating that was sprayed on the surface of the dovetail blade. The fretting cracks tended to initiate at the contact edge, where the high stress concentration existed, and severe fretting wear damage occurred. The CuNiIn coating modified the local stress distribution under the fretting condition and mitigated the stress concentration degree of the contact edge. The surface strain hardening layer and the compressive residual stress were induced by the shot peening treatment, which promoted the wear and the fatigue resistance of the Ti-6Al-4V substrate under the fretting condition. The fretting fatigue property of specimens improved after the combined surface treatment.

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付雪松

同专业博导同专业硕导个人学术主页

副教授博士生导师硕士生导师

性别：男

毕业院校：大连理工大学

学位：博士

所在单位：材料科学与工程学院

学科：材料加工工程

办公地点：大连理工大学铸造中工程心

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