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Yang Shijie, Meng Qingsen, Lu Wenxiong. Fracture morphology of solidification crack and crack resisting property of austenitic stainless steel deposited metal[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 1995, (2): 62-67.
Citation: Yang Shijie, Meng Qingsen, Lu Wenxiong. Fracture morphology of solidification crack and crack resisting property of austenitic stainless steel deposited metal[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 1995, (2): 62-67.
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Fracture morphology of solidification crack and crack resisting property of austenitic stainless steel deposited metal

  • Taiyuan University of Technology

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  • Received Date: November 11, 1994
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  • The deposited metals of austenitic stainless steel type covered electrode with different alloy system are tested by using Trans-varestraint test. Their fracture morphologies of cracks are observered with EPSA. The results show that when the crack-resisting capacity of deposited metal is poor the crack fracture morphologies appear a development from prism to rectangle.The content of ferrite in weld metal is one of important factors affecting the solidification carck sensibility of austentic stainless steels deposited metal. While the temperature and strain rate are constant the crack-resisting property can be obivously improved through changing the ratio of Creq/Nieq.The deposited metal of the Cr29Ni19 type covered electrode researched in this paper possesses better crackresisting property when its Creq/Nieq is 1.7 and its ferrite content is more than 15 pereent.
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