Hot ductility of austenitic stainless steels Cr15Mn9Cu2Ni1N in slab shell

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	Hot ductility of austenitic stainless steels Cr15Mn9Cu2Ni1N in slab shell
	Hou, Guo-Qing; Zhu, Liang; Ma, Rong; Wei, Peng
刊名	Cailiao Kexue yu Gongyi/Material Science and Technology
	2011-02-01
卷号	19 期号:1 页码:91-94
关键词	Austenite Chromium alloys Cooling Copper alloys Deformation Ductility Manganese alloys Shells (structures) Solidification Tensile testing Textures Cooling rates Deformation temperatures Equiaxed structures High temperature tensile tests Reduction of areas Slab shells Solidification mode Tensile specimens
ISSN号	10050299
英文摘要	To understand the hot ductility of austenitic stainless steel Cr15Mn9Cu2Ni1N slab, small tensile specimens were cut from the slab core and shell, and high temperature tensile tests were carried out on THERMORESTOR-W machine. Results show that, when deformation temperature is higher than 1050°C, the reduction of area (RA) of specimens from shell surface is low, and gradually increases from surface to inside; when deformation temperature is lower than 1050°C, the RA doesn't change apparently. According to the microstructures of the slab, it is found that the cooling rate of shell surface during solidification is so high that δ-ferrite don't solidify as primary phase entirely in liquid phase and then transform austenite, instead, the austenite is solidified directly from retained liquid phase between dendrites. This change of solidification mode is very obvious in the shell surface, which decreases its hot ductility. Owing to coarse equiaxed structures in core, the hot ductility is lower than that in shell.
语种	中文
出版者	Harbin Institute of Technology
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/110970]
专题	省部共建有色金属先进加工与再利用国家重点实验室材料科学与工程学院
作者单位	State Key Laboratory of Gansu Advanced Non-Ferrous Metal Materials, Lanzhou University of Technology, Lanzhou 730050, China
推荐引用方式 GB/T 7714	Hou, Guo-Qing,Zhu, Liang,Ma, Rong,et al. Hot ductility of austenitic stainless steels Cr15Mn9Cu2Ni1N in slab shell[J]. Cailiao Kexue yu Gongyi/Material Science and Technology,2011,19(1):91-94.
APA	Hou, Guo-Qing,Zhu, Liang,Ma, Rong,&Wei, Peng.(2011).Hot ductility of austenitic stainless steels Cr15Mn9Cu2Ni1N in slab shell.Cailiao Kexue yu Gongyi/Material Science and Technology,19(1),91-94.
MLA	Hou, Guo-Qing,et al."Hot ductility of austenitic stainless steels Cr15Mn9Cu2Ni1N in slab shell".Cailiao Kexue yu Gongyi/Material Science and Technology 19.1(2011):91-94.