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加工图理论研究进展
引用本文:曾卫东,周义刚,周军,俞汉清,张学敏,徐斌.加工图理论研究进展[J].稀有金属材料与工程,2006,35(5):673-677.
作者姓名:曾卫东  周义刚  周军  俞汉清  张学敏  徐斌
作者单位:1. 西北工业大学,凝固技术国家重点实验室,陕西,西安,710072
2. 西北工业大学,凝固技术国家重点实验室,陕西,西安,710072;西北有色金属研究院,陕西,西安,710016
摘    要:综述了基于原子模型的Raj加工图和基于动态材料模型(DMM)加工图的研究进展,重点介绍了DMM的原理,对比分析了几种常见的塑性失稳判断准则的优缺点,并以基于DMM加工图为例,分析了材料成形过程中各种变形机制,并进一步阐明了加工图的发展方向。

关 键 词:加工图  耗散  动态材料模型  塑性失稳判断准则  绝热剪切带
文章编号:1002-185X(2006)05-0673-05
收稿时间:2005-03-07
修稿时间:2005年3月7日

Recent Development of Processing Map Theory
Zeng Weidong,Zhou Yigang,Zhou Jun,Yu Hanqing,Zhang Xuemin,Xu Bin.Recent Development of Processing Map Theory[J].Rare Metal Materials and Engineering,2006,35(5):673-677.
Authors:Zeng Weidong  Zhou Yigang  Zhou Jun  Yu Hanqing  Zhang Xuemin  Xu Bin
Abstract:Processing map is an effective tool for the optimization of materials workability, product property control and defect avoidance. Processing map is constructed by the superimposition of power dissipation efficiency and the instability maps, and can be divided into a safe domain and an unsafe domain. The developments of the Raj map and the processing map based on Dynamic Material Model (DMM) were reviewed in this paper. The DMM theory was introduced first, and then a comparison of different instability criteria were made to help to achieve a better control of microstructure during processing. Different deformation mechanisms, including dynamic recrystalli- zation, superplastic deformation, wedge cracking, formation of adiabatic shear bands and globulazation of lamella alpha were explained by the processing map based on DMM.
Keywords:processing map  dissipation  dynamic material model (DMM)  instability criteria  adiabatic shear band  
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