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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/13913

Title: 類鑽碳鍍膜對含鈦高強度低碳鋼之銲接殘留應力影響
Effect of diamond-like carbon coating on welding residual stress of titanium bearing low carbon high strength steel
Authors: Shu-Ming Wu
吳書名
Contributors: NTOU:Department of Mechanical and Mechatronic Engineering
國立臺灣海洋大學:機械與機電工程學系
Keywords: 銲接殘留應力;類鑽碳薄膜;陰極電弧沉積;有限元素法
Welding residual stress;Diamond like carbon;Cathodic arc PVD;Finite element method
Date: 2010
Issue Date: 2011-06-30T07:30:09Z
Abstract: 本論文主旨是在於以實驗及模擬對兩種不同初始溫度之含鈦高強度低碳鋼平板於相同銲接輸入熱下的銲接殘留應力分佈情況之探討。初始溫度為 7 oC 之平板有著較初始溫度為 25 oC 之平板大的殘留張應力,這可歸因於 7 oC 之平板在銲接過程中有著較大的溫度梯度所導致。以陰極電弧鍍類鑽碳薄膜於銲接過之含鈦高強度低碳鋼平板上,會降低及釋放某種程度上的銲接殘留應力。利用有限元素法模擬銲接程序,計算出銲後產生的殘留應力,和鑽孔法量測殘留應力的值,相當接近,這也驗證了運用有限元素之方法來解析殘留應力,相當可行。
The distribution of welding residual stresses in high strength titanium bearing low carbon steel with two different initial plate temperatures before welding was measured and calculated under the same heat input. The as-welded 7 oC plate exhibited a higher residual tensile stress than as-welded 25 oC plate due to the greater temperature gradient. Diamond like carbon (DLC) thin film deposited on the as welded plates can reduce 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 agrees with finite element method (FEM) simulated results very well.
URI: http://ethesys.lib.ntou.edu.tw/cdrfb3/record/#G0M97720035
http://ntour.ntou.edu.tw/ir/handle/987654321/13913
Appears in Collections:[機械與機電工程學系] 博碩士論文

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