National Taiwan Ocean University Institutional Repository:Item 987654321/50747
English  |  正體中文  |  简体中文  |  全文笔数/总笔数 : 27314/39158
造访人次 : 2471184      在线人数 : 51
RC Version 4.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
搜寻范围 进阶搜寻

jsp.display-item.identifier=請使用永久網址來引用或連結此文件: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/50747

题名: Hydrogen-enhanced cracking of 2205 duplex stainless steel welds
作者: M.C.Young
S.L.I.Chan
L.W.Tsay
C.-S.Shin
贡献者: 國立臺灣海洋大學:材料工程研究所
关键词: Duplex stainless steel
Laser welding
Gaseous hydrogen embrittement
Notched tensile test
Charpy impact
Quasi-cleavage
日期: 2005-10
上传时间: 2018-10-22T08:15:26Z
出版者: Materials Chemistry and Physics
摘要: Abstract: Slow-displacement rate tensile tests were carried out to investigate the effect of hydrogen embrittlement on notched tensile strength (NTS) and fracture characteristics of 2205 duplex stainless steel weld. The hydrogen embrittlement susceptibility of the specimens was correlated with microstructures of the fusion zone. The results indicated that all the specimens were susceptible to gaseous hydrogen embrittlement but to different degrees. The susceptibility decreased with increasing austenite content in the weld metal. The orientation with respect to the rolling direction had a great influence on the impact toughness of the base plate. Preheating before welding or changing the plasma-assisted gas from He to N2 could raise the γ content of the fusion zone and improve the impact toughness. In case of the post-weld heat-treated weld (PW), the presence of randomly oriented acicular and blocky γ in the fusion zone led to the highest impact energy and NTS among the specimens being tested. Scanning electron microscopy (SEM) fractographs revealed that all specimens underwent a significant change in fracture mode from ductile in air to quasi-cleavage fracture in H2.
關聯: 91(1) pp.21-27
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/50747
显示于类别:[材料工程研究所] 期刊論文

文件中的档案:

档案 描述 大小格式浏览次数
index.html0KbHTML23检视/开启


在NTOUR中所有的数据项都受到原著作权保护.

 


著作權政策宣告: 本網站之內容為國立臺灣海洋大學所收錄之機構典藏,無償提供學術研究與公眾教育等公益性使用,請合理使用本網站之內容,以尊重著作權人之權益。
網站維護: 海大圖資處 圖書系統組
DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - 回馈