| Al—7Si—0.45Mg铸造合金断裂韧性统计模型 |
| |
| 引用本文： | 张国斌,陈昌麒. Al—7Si—0.45Mg铸造合金断裂韧性统计模型[J]. 金属学报, 1990, 26(1): 32-37 |
| |
| 作者姓名： | 张国斌 陈昌麒 |
| |
| 作者单位： | 北京航空航天大学材料科学与工程系，北京航空航天大学 北京(100083) |
| |
| 摘 要： | 本文根据Al-7Si-0.45Mg铸造合金断裂微观特征的观察、对合金各种力学性能的测量和影响因素的分析以及对由此分析得出的该合金断裂组织控制参量——较大共晶Si粒子的线尺寸及其分布的观察和定量研究,提出了符合该合金断裂过程的微观断裂机理,并把该合金断裂的组织控制参量与断裂性能相联系,在铸造合金中建立了符合合金微观断裂机理的断裂统计模型。
|
| 关 键 词： | Al－Si－Mg合金 断裂 韧性 统计模型 |
| 收稿时间： | 1990-01-18 |
| 修稿时间： | 1990-01-18 |
STATISTICAL MODEL FOR FRACTURE TOUGHNESS OF A MODIFIED Al-7Si-0.45Mg CAST ALLOY |
| |
| ZHANG Guobin,CHEN Changqi Beijing University of Aeronautics and Astronautics. STATISTICAL MODEL FOR FRACTURE TOUGHNESS OF A MODIFIED Al-7Si-0.45Mg CAST ALLOY[J]. Acta Metallurgica Sinica, 1990, 26(1): 32-37 |
| |
| Authors: | ZHANG Guobin CHEN Changqi Beijing University of Aeronautics Astronautics |
| |
| Affiliation: | ZHANG Guobin,CHEN Changqi Beijing University of Aeronautics and Astronautics Department of Materials Science and Engineering,Beijing University of Aeronautics and Astronautics,Beijing |
| |
| Abstract: | The statistical model for the fracture toughness of a modified Al-7Si-0.45Mg cast alloy has been proposed on the basis of analysis of the correlationbetween the size distribution of crack nuclei and Si particles and of the microme-chanism of fracture. The suitable criterion of fracture toughness according to themodel has been given. The model has found a good explanation for the fracture.feature, fracture toughness and microstructure, and agreed with the experiments-very well. |
| |
| Keywords: | cast Al alloy fracture toughness statistical model |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《金属学报》浏览原始摘要信息 |
|
点击此处可从《金属学报》下载全文 |
