Cleavage fracture model for granular bainite in simulated coarse-grained heat-affected zones of high-strength low-alloyed steels
文献类型：期刊论文
| 作者 | D. W. Tian ; L. P. Karjalainen ; B. N. Qian ; X. F. Chen |
| 刊名 | Jsme International Journal Series a-Solid Mechanics and Material Engineering
 |
| 出版日期 | 1997 |
| 卷号 | 40期号:2页码:179-188 |
| 关键词 | cleavage fracture granular bainite CGHAZ HSLA steels martensite-austenite particles toughness phase steels microstructure deformation toughness behavior metals welds crack |
| ISSN号 | 1340-8046 |
| 中文摘要 | A model of cleavage fracture in granular bainite was developed. It involves two-dimensional elastic interaction between a main crack and multiple microcracks induced by the existence of martensite-austenite (M-A) particles in front of the main crack. A factor of fracture toughness reduction due to the presence of M-A particles (f(MA)) was introduced to describe the effect of M-A particles on the stress intensity factor at the tip of the main crack. The values of f(MA) can be expressed as the inverse of the amplification coefficient of the stress intensity factor as a result from the interference between microcracks and a main crack in brittle materials. An equation was derived which describes the relationship between fracture toughness and microstructural variables, including the influence of the effective grain size as well as the average width and interspacing of M-A particles. Moreover, simple linear regression equations were used to check the validation of the present model for predicting cleavage fracture toughness in simulated coarse-grained heat-affected zones of quenched and tempered high-strength low-alloyed steels. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/38115]  |
| 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 | D. W. Tian,L. P. Karjalainen,B. N. Qian,et al. Cleavage fracture model for granular bainite in simulated coarse-grained heat-affected zones of high-strength low-alloyed steels[J]. Jsme International Journal Series a-Solid Mechanics and Material Engineering,1997,40(2):179-188. |
| APA | D. W. Tian,L. P. Karjalainen,B. N. Qian,&X. F. Chen.(1997).Cleavage fracture model for granular bainite in simulated coarse-grained heat-affected zones of high-strength low-alloyed steels.Jsme International Journal Series a-Solid Mechanics and Material Engineering,40(2),179-188. |
| MLA | D. W. Tian,et al."Cleavage fracture model for granular bainite in simulated coarse-grained heat-affected zones of high-strength low-alloyed steels".Jsme International Journal Series a-Solid Mechanics and Material Engineering 40.2(1997):179-188. |
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。