Ion implantation induced saturation stress decrease of body-centred cubic polycrystalline alpha-Fe by Ag+, Cr+, Y+ and A1(+) in cyclic deformation
文献类型：期刊论文
| 作者 | H. W. Wang ; D. Z. Yang ; W. D. Shi ; S. Patu |
| 刊名 | Nuclear Instruments & Methods in Physics Research Section B-Beam Interactions with Materials and Atoms
 |
| 出版日期 | 1996 |
| 卷号 | 108期号:4页码:371-376 |
| 关键词 | fatigue crack initiation nickel behavior copper metals |
| ISSN号 | 0168-583X |
| 中文摘要 | Plastic strain range (3 x 10(-3)-1.2 x 10(-2)) controlled low cycle fatigue (LCF) tests have been performed using an annealed polycrystalline alpha-Fe with and without metallic ion implantations. Ag+, Cr+, Y+, and Al+ ion implantation was carried out at an energy range of 90-120 keV and a dose of 5 X 10(16) ions/cm(2). It was found that the fatigue resistance of alpha-Fe was increased, and the fatigue crack initiation (FCI) life extended by implantation. The cyclic stress-strain (CSS) plots revealed that the as-implanted specimens experienced a cyclic softening (saturation stress decrease) compared with the unimplanted specimens. Surface plastic strain homogenisations were observed for the implanted specimens. An implantation induced enhancement of screw dislocation annihilations by cross slip instead of causing the formation of a kink pairs mechanism was proposed to correlate the strain homogenisation with the relative cyclic softening, and thus to explain the improved LCF property of alpha-Fe by implantation. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/38421]  |
| 专题 | 金属研究所_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. Ion implantation induced saturation stress decrease of body-centred cubic polycrystalline alpha-Fe by Ag+, Cr+, Y+ and A1(+) in cyclic deformation[J]. Nuclear Instruments & Methods in Physics Research Section B-Beam Interactions with Materials and Atoms,1996,108(4):371-376. |
| APA | H. W. Wang,D. Z. Yang,W. D. Shi,&S. Patu.(1996).Ion implantation induced saturation stress decrease of body-centred cubic polycrystalline alpha-Fe by Ag+, Cr+, Y+ and A1(+) in cyclic deformation.Nuclear Instruments & Methods in Physics Research Section B-Beam Interactions with Materials and Atoms,108(4),371-376. |
| MLA | H. W. Wang,et al."Ion implantation induced saturation stress decrease of body-centred cubic polycrystalline alpha-Fe by Ag+, Cr+, Y+ and A1(+) in cyclic deformation".Nuclear Instruments & Methods in Physics Research Section B-Beam Interactions with Materials and Atoms 108.4(1996):371-376. |
入库方式： OAI收割
来源：金属研究所
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