Effect of boron addition on hydrogen embrittlement sensitivity in Fe-Ni based alloys

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	Effect of boron addition on hydrogen embrittlement sensitivity in Fe-Ni based alloys; Effect of boron addition on hydrogen embrittlement sensitivity in Fe-Ni based alloys
	Z. F. Guo; H. Liang; M. J. Zhao; L. J. Rong
	2010 ; 2010
发表期刊	Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing ; Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
ISSN	0921-5093 ; 0921-5093
卷号	527 期号:24-25 页码:6620-6625
摘要	In Fe-Ni based alloys, hydrogen embrittlement sensitivity is thought to correlate well with microstructure. The effect of boron addition on microstructure of Fe-Ni austenitic alloys has been investigated. It is found that 0.002 wt.% boron addition can significantly retard the formation of eta phase, and only a few continuous carbides precipitate at the grain boundaries. As the boron content increases to 0.006 wt.%, carbides at grain boundaries become discontinuous, and are finer in size than that in the alloy with 0.002 wt.% boron. Significant decrease of the percent loss of reduction of area (RA) are seen in the alloys with boron contents lower than 0.006 wt.%. However, when further increasing the boron concentration to 0.01 wt.%, an increase in the percent loss of RA is found, due to the re-appearance of eta phase and boride precipitation. Appropriate addition of boron can be an effective way of lowering hydrogen embrittlement sensitivity in Fe-Ni based alloys. (C) 2010 Elsevier B.V. All rights reserved.; In Fe-Ni based alloys, hydrogen embrittlement sensitivity is thought to correlate well with microstructure. The effect of boron addition on microstructure of Fe-Ni austenitic alloys has been investigated. It is found that 0.002 wt.% boron addition can significantly retard the formation of eta phase, and only a few continuous carbides precipitate at the grain boundaries. As the boron content increases to 0.006 wt.%, carbides at grain boundaries become discontinuous, and are finer in size than that in the alloy with 0.002 wt.% boron. Significant decrease of the percent loss of reduction of area (RA) are seen in the alloys with boron contents lower than 0.006 wt.%. However, when further increasing the boron concentration to 0.01 wt.%, an increase in the percent loss of RA is found, due to the re-appearance of eta phase and boride precipitation. Appropriate addition of boron can be an effective way of lowering hydrogen embrittlement sensitivity in Fe-Ni based alloys. (C) 2010 Elsevier B.V. All rights reserved.
部门归属	[rong, lijian] chinese acad sci, inst met res, div mat special environm, shenyang 110016, peoples r china. [liang, hao] china acad engn phys, inst struct mech, mianyang 621900, peoples r china.;rong, lj (reprint author), chinese acad sci, inst met res, div mat special environm, 72 wenhua rd, shenyang 110016, peoples r china;ljrong@imr.ac.cn ; [rong, lijian] chinese acad sci, inst met res, div mat special environm, shenyang 110016, peoples r china. [liang, hao] china acad engn phys, inst struct mech, mianyang 621900, peoples r china.;rong, lj (reprint author), chinese acad sci, inst met res, div mat special environm, 72 wenhua rd, shenyang 110016, peoples r china;ljrong@imr.ac.cn
关键词	Fe-ni Based Alloys Fe-ni Based Alloys Boron Boron Precipitate Precipitate Hydrogen Embrittlement Hydrogen Embrittlement Sensitivity Sensitivity Austenitic Stainless-steel Austenitic Stainless-steel Grain-boundary Segregation Grain-boundary Segregation Carbide Carbide Precipitation Precipitation Behavior Behavior Superalloy Superalloy Microstructure Microstructure Deformation Deformation Performance Performance Titanium Titanium Fracture Fracture
URL	查看原文 ; 查看原文
WOS记录号	WOS:000281942900025 ; WOS:000281942900025
引用统计	被引频次：44[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/321006/31131
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Z. F. Guo,H. Liang,M. J. Zhao,et al. Effect of boron addition on hydrogen embrittlement sensitivity in Fe-Ni based alloys, Effect of boron addition on hydrogen embrittlement sensitivity in Fe-Ni based alloys[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing, Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2010, 2010,527, 527(24-25):6620-6625, 6620-6625.
APA	Z. F. Guo,H. Liang,M. J. Zhao,&L. J. Rong.(2010).Effect of boron addition on hydrogen embrittlement sensitivity in Fe-Ni based alloys.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,527(24-25),6620-6625.
MLA	Z. F. Guo,et al."Effect of boron addition on hydrogen embrittlement sensitivity in Fe-Ni based alloys".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 527.24-25(2010):6620-6625.