LOW-CYCLE FATIGUE OF POLYCRYSTALLINE ALPHA-IRON MODIFIED BY MUTUALLY IMMISCIBLE SILVER-ION IMPLANTATION

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	LOW-CYCLE FATIGUE OF POLYCRYSTALLINE ALPHA-IRON MODIFIED BY MUTUALLY IMMISCIBLE SILVER-ION IMPLANTATION
	H. W. Wang; D. Z. Yang; W. D. Shi; S. Patu
	1995
发表期刊	Journal of Materials Science
ISSN	0022-2461
卷号	30 期号:20 页码:5073-5077
摘要	Cyclic deformations of annealed pure polycrystalline alpha-iron with and without further mutually immiscible silver-ion implantation (90 keV, 6 x 10(16) ions cm(-2)) were studied in a plastic strain-controlled tension-compression fatigue test (triangular loading waveform, frequency 0.02-0.3 Hz, and plastic strain range 3 x 10(-3)-1.2 x 10(-2)). The obtained plastic strain-life (Delta epsilon(p)-N-f) curves showed that the iron specimens could survive for a greater number of cycles before failure when implanted. Comparison of the cyclic stress-strain curves suggested that the implanted specimens had maintained a relatively more stable microstructural change than those unimplanted ones which had undergone a violent cyclic hardening during cyclic deformation. This is proposed to be a strong indication that the fatigue ductility has been improved and the cross slip of screw dislocations, which leads to the evolution of the persistent slip bands for fatigue damage, was hindered to some extent after ion implantation.
部门归属	dalian univ technol,dept mat engn,dalian 116024,peoples r china. acad sinica,inst met res,state key lab fatigue & fracture mat,shenyang 110015,peoples r china.;wang, hw (reprint author), univ manchester,inst sci & technol,ctr corros & protect,pob 88,manchester m60 1qd,lancs,england
关键词	Copper Single-crystals Behavior Nickel Strain Metals
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/38685
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	H. W. Wang,D. Z. Yang,W. D. Shi,et al. LOW-CYCLE FATIGUE OF POLYCRYSTALLINE ALPHA-IRON MODIFIED BY MUTUALLY IMMISCIBLE SILVER-ION IMPLANTATION[J]. Journal of Materials Science,1995,30(20):5073-5077.
APA	H. W. Wang,D. Z. Yang,W. D. Shi,&S. Patu.(1995).LOW-CYCLE FATIGUE OF POLYCRYSTALLINE ALPHA-IRON MODIFIED BY MUTUALLY IMMISCIBLE SILVER-ION IMPLANTATION.Journal of Materials Science,30(20),5073-5077.
MLA	H. W. Wang,et al."LOW-CYCLE FATIGUE OF POLYCRYSTALLINE ALPHA-IRON MODIFIED BY MUTUALLY IMMISCIBLE SILVER-ION IMPLANTATION".Journal of Materials Science 30.20(1995):5073-5077.