| 工业态AZ31B镁合金超塑性变形的损伤研究 |
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| 引用本文： | 王智祥,宋美娟,向毅. 工业态AZ31B镁合金超塑性变形的损伤研究[J]. 兵器材料科学与工程, 2006, 29(2): 6-9 |
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| 作者姓名： | 王智祥 宋美娟 向毅 |
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| 作者单位： | 重庆交通学院,四川,重庆,400074;重庆科技学院,四川,重庆,400050 |
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| 摘 要： | 工业态镁合金板材在一般情况下受力易断裂,工业生产中复杂机械零部件的成形加工十分困难。通过镁合金板材超塑性变形的拉伸和胀形试验研究,并通过其试件断口轴剖面的扫描电镜观察,使用计算机定量分析和研究了空洞的损伤演化情况,得到了超塑性变形条件下的空洞生成扩展规律及损伤条件,建立了空洞生长及损伤的数学模型经验公式。研究结果为板材镁合金的成型加工等工业应用制定工艺路线与参数提供了理论依据。
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| 关 键 词： | AZ31B镁合金 超塑性变形 空洞 损伤 数学模型 |
| 文章编号： | 1004-244X（2006）02-0006-03 |
| 收稿时间： | 2005-08-30 |
| 修稿时间： | 2005-12-12 |
Superplasticity damage research of industrious AZ31B magnesium alloy |
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| WANG Zhi-xiang,SONG Mei-juan,XIANG Yi. Superplasticity damage research of industrious AZ31B magnesium alloy[J]. Ordnance Material Science and Engineering, 2006, 29(2): 6-9 |
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| Authors: | WANG Zhi-xiang SONG Mei-juan XIANG Yi |
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| Affiliation: | 1.Chongqing Jiaotong University, Chongqing 400074, China; 2.Chongqing Institute of science and Technology, Chongqing 400050, China |
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| Abstract: | Industrial Mg-alloy plate is easy to be fractured when being processed, so the complicated machine components are usually difficult to manufacture. By means of the extension and expansion experiments under super-plastic distortion, the fractured sections were observed by SEM. the developing of damage is quantitatively analyzed. The rules of the cavity developing and damaging are presented. Furthermore, a mathematical model equation of the cavity developing and damaging is set up. The result of the research provides the theoretical basis of processing procedure and parameter of the Mg-alloy plate. |
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| Keywords: | AZ31B Mg-alloy superplasticity cavity damage mathematics model |
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