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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/23834

Title: Relaxing welding residual stresses by diamond like carbon coating on duplex titanium alloys
Authors: Hao-Hsun Lee;Shing-Hoa Wang;Ching-Ying Shih;Ching-Min Cheng;Hsiu-Chuan Hsu;Kevin Kan;Chien-Ming Sung
Contributors: NTOU:Department of Mechanical and Mechatronic Engineering
Date: 2008-01
Issue Date: 2011-10-20T08:08:25Z
Publisher: Science and Technology of Welding & Joining
Abstract: Abstract:The distribution of welding residual stresses in titanium alloy plates composed of Ti–6Al–4V (Ti-64) and Ti–4˙5Al–3V–2Mo–2Fe (SP700) alloys was measured and calculated under the same heat input. Ti-64 alloy exhibited a higher residual tensile stress than the SP700 alloy due to the low thermal conductivity and thermal diffusivity of the former alloy, in addition to its high thermal expansion coefficient. Diamond like carbon (DLC) thin film deposited on the as welded titanium alloy plates reduced the magnitude of the welding residual stress caused by the cathodic arc physical vapour deposition (PVD) process. The distribution of the measured welding residual stresses agreed with the finite element method (FEM) simulated results very well.
Relation: 13(1), pp.75-79
URI: http://ntour.ntou.edu.tw/handle/987654321/23834
Appears in Collections:[機械與機電工程學系] 期刊論文

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