標題: Fracture responses of microstructures of electron beam-welded D6AC
作者: Wu, Shyh-Chi
Wen, Hua-Chiang
Wu, Ming-Jhang
Chou, Chang-Pin
機械工程學系
Department of Mechanical Engineering
關鍵字: EBW;Tensile strength;Tempering;SEM
公開日期: 20-七月-2012
摘要: In this study, D6AC steel was produced from flow forming (wall thickness reduction: 67%) and then it was subjected to electron beam welding and tempering treated. We characterized the specimens in terms of their microstructures and nanotribological properties. After tempering treatment at 315 degrees C, the yield strength increased from 381 to 1334 MPa and the percentage elongation increased remarkably from 0.5 to 7.8%. We performed these mechanical studies for the samples subjected to each set of experimental conditions, and determined the tribological characteristics from the heat-affected zone and the fusion zone. Lower degrees of adhesion reflected the presence of interlinks and rearrangements of indenter tip at lateral force that have been responsible for fluctuations in the coefficients of friction. (C) 2012 Elsevier Ltd. All rights reserved.
URI: http://dx.doi.org/10.1016/j.vacuum.2012.03.059
http://hdl.handle.net/11536/16933
ISSN: 0042-207X
DOI: 10.1016/j.vacuum.2012.03.059
期刊: VACUUM
Volume: 86
Issue: 12
起始頁: 1828
結束頁: 1833
顯示於類別:期刊論文


文件中的檔案:

  1. 000308672000008.pdf