High temperature fatigue behavior of wrought nickel-base superalloy GH4049
文献类型：期刊论文
| 作者 | Z. G. Wang ; L. J. Chen ; J. F. Tian ; G. Yao |
| 刊名 | Metals and Materials-Korea
 |
| 出版日期 | 1999 |
| 卷号 | 5期号:6页码:597-612 |
| 关键词 | nickel-base superalloy high temperature fatigue strain hold crack initiation and propagation life prediction low-cycle-fatigue nimonic pe-16 superalloy elevated-temperature damage alloy fracture prediction mechanisms |
| ISSN号 | 1225-9438 |
| 中文摘要 | Push-pull total strain-controlled fatigue tests without and with a hold period were carried at elevated temperatures for wrought nickel base superalloy GH4049. The influence of the testing temperature and strain hold period on fatigue behavior was determined. The allay would exhibit either cyclic strain hardening, softening or stability during cyclic straining. Fatigue life depends strongly on the testing temperature and the introduction of the strain hold period. Observations on fatigue specimens using transmission electron microscopy (TEM) showed that the dislocations were distributed mostly in the gamma matrix. It was observed by scanning electron microscopy (SEM) that cracks initiated always in a transgranular mode, but their propagation mode was closely related to the testing temperature. In addition, the fatigue lift was predicted by linear damage summation (LDS), strain range partitioning (SRP) and the strain energy partitioning (SEP) method. The results of life prediction indicated that the SRP and SEP methods were in a good agreement as to the measured and predicted life at lower temperatures, while the LDS method showed better predictability at higher temperature as compared to the SRP and SEP methods. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/37528]  |
| 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 | Z. G. Wang,L. J. Chen,J. F. Tian,et al. High temperature fatigue behavior of wrought nickel-base superalloy GH4049[J]. Metals and Materials-Korea,1999,5(6):597-612. |
| APA | Z. G. Wang,L. J. Chen,J. F. Tian,&G. Yao.(1999).High temperature fatigue behavior of wrought nickel-base superalloy GH4049.Metals and Materials-Korea,5(6),597-612. |
| MLA | Z. G. Wang,et al."High temperature fatigue behavior of wrought nickel-base superalloy GH4049".Metals and Materials-Korea 5.6(1999):597-612. |
入库方式： OAI收割
来源：金属研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。