• 首页 | 期刊简介 | 编委会 | 投稿须知 | 下载专区 | 联系我们 | English
Zhou Yang,Melicent Stossel,Junlan Wang*.Thickness effect on microstructural and mechanical properties of pulse-laser treated Ti/Ni multilayer thin films[J].实验力学,2017,32(5):634~644
Thickness effect on microstructural and mechanical properties of pulse-laser treated Ti/Ni multilayer thin films
Thickness effect on microstructural and mechanical properties of pulse-laser treated Ti/Ni multilayer thin films
投稿时间: 2017-07-21  最后修改时间: 2017-09-01
DOI:10.7520/1001-4888-17-311
中文关键词:  Ti/Ni multilayer  laser treatment  thickness effect  hardness  pulse-energy
英文关键词:Ti/Ni multilayer  laser treatment  thickness effect  hardness  pulse-energy
基金项目:
作者单位
Zhou Yang Department of Mechanical Engineering, University of Washington, Box 352600 Seattle, WA 98195, USA 
Melicent Stossel Department of Mechanical Engineering, University of Washington, Box 352600 Seattle, WA 98195, USA 
Junlan Wang* Department of Mechanical Engineering, University of Washington, Box 352600 Seattle, WA 98195, USA 
摘要点击次数: 132
全文下载次数: 
中文摘要:
      Previous work showed that pulse-laser irradiation can strengthen metal multilayer thin films through intermetallic formation and the degree of strengthening is a function of laser pulse energy. In this work, the effect of individual layer thickness (λ) and total multilayer thickness (h) on the resulting microstructure and mechanical strength of laser-treated Ti/Ni multilayers was further investigated. Experiments were carried out on four λ/h combinations using individual layer thickness of 20nm and 50nm, and total multilayer thickness of 500nm and 1μm, respectively. Obvious intermetallic strengthening was observed in the 500nm thick multilayers, especially with the 20nm layer thickness, but not in the 1μm thick multilayers. Further, the multilayer surface morphology after laser treatment was observed to be dominated by competition between laser-induced optical interference and thermal melting, with the former leading to ripple or cross-hatched patterns and the latter leading to melted surfaces with pores and cracks.
英文摘要:
      Previous work showed that pulse-laser irradiation can strengthen metal multilayer thin films through intermetallic formation and the degree of strengthening is a function of laser pulse energy. In this work, the effect of individual layer thickness (λ) and total multilayer thickness (h) on the resulting microstructure and mechanical strength of laser-treated Ti/Ni multilayers was further investigated. Experiments were carried out on four λ/h combinations using individual layer thickness of 20nm and 50nm, and total multilayer thickness of 500nm and 1μm, respectively. Obvious intermetallic strengthening was observed in the 500nm thick multilayers, especially with the 20nm layer thickness, but not in the 1μm thick multilayers. Further, the multilayer surface morphology after laser treatment was observed to be dominated by competition between laser-induced optical interference and thermal melting, with the former leading to ripple or cross-hatched patterns and the latter leading to melted surfaces with pores and cracks.
查看全文  查看/发表评论  下载PDF阅读器
关闭

版权所有:《实验力学》编辑部
您是本站第 1221961 位访问者,今日一共访问656次,当前在线人数: 12
技术支持:本系统由北京勤云科技发展有限公司设计