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Mechanical response of the TiAl/steel brazed joint under impact load.(Report)

Li, Yulong ; Feng, Jicai ; Peng, He ; Hua, Zhang

Journal of Materials Science, June, 2009, Vol.44(12), p.3077(5) [Tạp chí có phản biện]

ISSN: 0022-2461

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  • Nhan đề:
    Mechanical response of the TiAl/steel brazed joint under impact load.(Report)
  • Tác giả: Li, Yulong ; Feng, Jicai ; Peng, He ; Hua, Zhang
  • Chủ đề: Robots -- Analysis ; Base Metals -- Analysis ; Fracture (Materials) -- Analysis
  • Là 1 phần của: Journal of Materials Science, June, 2009, Vol.44(12), p.3077(5)
  • Mô tả: Byline: Yulong Li (1,2), Jicai Feng (2), He Peng (2), Zhang Hua (1) Abstract: Mesnager impact tests of TiAl base metal and TiAl/steel brazed joints were conducted at room temperature (293 K) and elevated temperature (623 K). Impact strength, impact energy, fracture path, and the behavior of the reaction phases were studied. For the room temperature test, average impact energy and strength of the joint are 71.9% and 84.2% of the TiAl base metal, respectively which are 62.5% and 75.3% of TiAl base metal, respectively, at 623 K. Fracture path and crack propagation process analysis show, when subjected to the impact load, cracks germinate at the interface of Ag-based solid [solution/AlCu.sub.2]Ti particles, grow up and propagate into the Al--Cu--Ti brittle reaction layers, then propagate into the TiAl base metal, and result in failure. Author Affiliation: (1) Key Lab for Robot & Welding Automation of Jiangxi Province, Nanchang University, Nanchang, 330031, People's Republic of China (2) State Key Laboratory of Advanced Welding Production Technology, Harbin Institute of Technology, Harbin, 150001, People's Republic of China Article History: Registration Date: 16/03/2009 Received Date: 08/11/2008 Accepted Date: 16/03/2009 Online Date: 07/04/2009
  • Ngôn ngữ: English
  • Số nhận dạng: ISSN: 0022-2461

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