Effect of a small increase in the Ni content on the properties of a laser surface clad Fe-based alloy

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	Effect of a small increase in the Ni content on the properties of a laser surface clad Fe-based alloy; Effect of a small increase in the Ni content on the properties of a laser surface clad Fe-based alloy
	X. Y. Yang; X. A. Peng; J. Chen; F. H. Wang
	2007 ; 2007
发表期刊	Applied Surface Science ; Applied Surface Science
ISSN	0169-4332 ; 0169-4332
卷号	253 期号:9 页码:4420-4426
摘要	Two Fe-based alloys with a small variation in the Ni content, Fe-15.2Cr-5.1Ni and Fe-15.7Cr-7.1Ni (wt.%), were fabricated on a martensitic stainless steel 1Cr13 substrate by laser surface cladding (LSC) using a CO2 laser and Ar shielding gas that was blown into a molten pool. Both LSC alloys exhibited typical rapid directional solidification structures. However, 2 wt.% Ni increase led to similar to 9% increase in the weight fraction of austenite, and similar to 5% increase in the area proportion of interdendritic regions, which contained the higher Cr contents. These microstructural changes caused a great reduction in the microhardness and great improvements in the resistance to electrochemical corrosion in 0.5 M H2SO4 solution and high temperature oxidation in air at 900 degrees C. The reasons for these differences are discussed in detail. (c) 2006 Elsevier B.V. All rights reserved.; Two Fe-based alloys with a small variation in the Ni content, Fe-15.2Cr-5.1Ni and Fe-15.7Cr-7.1Ni (wt.%), were fabricated on a martensitic stainless steel 1Cr13 substrate by laser surface cladding (LSC) using a CO2 laser and Ar shielding gas that was blown into a molten pool. Both LSC alloys exhibited typical rapid directional solidification structures. However, 2 wt.% Ni increase led to similar to 9% increase in the weight fraction of austenite, and similar to 5% increase in the area proportion of interdendritic regions, which contained the higher Cr contents. These microstructural changes caused a great reduction in the microhardness and great improvements in the resistance to electrochemical corrosion in 0.5 M H2SO4 solution and high temperature oxidation in air at 900 degrees C. The reasons for these differences are discussed in detail. (c) 2006 Elsevier B.V. All rights reserved.
部门归属	chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china. dalu laser technique co, technique ctr, shenyang 110136, peoples r china.;peng, xa (reprint author), chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china;xpeng@imr.ac.cn ; chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china. dalu laser technique co, technique ctr, shenyang 110136, peoples r china.;peng, xa (reprint author), chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china;xpeng@imr.ac.cn
关键词	Fe-based Alloy Fe-based Alloy Laser Surface Cladding Laser Surface Cladding Microhardness Microhardness Electrochemical Electrochemical Corrosion Corrosion High Temperature Oxidation High Temperature Oxidation Stainless-steels Stainless-steels Solidification Mode Solidification Mode Tool Steels Tool Steels Cr Cr Coatings Coatings Behavior Behavior Stellite Stellite Microstructure Microstructure Susceptibility Susceptibility Parameters Parameters
URL	查看原文 ; 查看原文
WOS记录号	WOS:000244802300051 ; WOS:000244802300051
引用统计	被引频次：67[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/33980
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	X. Y. Yang,X. A. Peng,J. Chen,et al. Effect of a small increase in the Ni content on the properties of a laser surface clad Fe-based alloy, Effect of a small increase in the Ni content on the properties of a laser surface clad Fe-based alloy[J]. Applied Surface Science, Applied Surface Science,2007, 2007,253, 253(9):4420-4426, 4420-4426.
APA	X. Y. Yang,X. A. Peng,J. Chen,&F. H. Wang.(2007).Effect of a small increase in the Ni content on the properties of a laser surface clad Fe-based alloy.Applied Surface Science,253(9),4420-4426.
MLA	X. Y. Yang,et al."Effect of a small increase in the Ni content on the properties of a laser surface clad Fe-based alloy".Applied Surface Science 253.9(2007):4420-4426.