| CONFORM连续挤压金属变形行为的模拟实验研究 |
| |
| 引用本文： | 彭大暑,姚必全,左铁镛. CONFORM连续挤压金属变形行为的模拟实验研究[J]. 中南大学学报(自然科学版), 1990, 0(5) |
| |
| 作者姓名： | 彭大暑 姚必全 左铁镛 |
| |
| 作者单位： | 中南礦治学院材料科学与工程系，中南礦治学院材料科学与工程系，中南礦治学院材料科学与工程系 |
| |
| 摘 要： | 为了模拟研究CONFORM连续挤压过程中金属的变形行为,本文设计了一种专门的模拟实验装置,并利用莫尔云纹法研究了模拟实验时金属塑性变形的分布情况。研究结果表明,CONFORM连续挤压时的金属塑性流动不同于常规挤压时的情形,在塑性变形区内存在一个剧烈剪切变形带。剧烈剪切变形带的存在有助于减缓挤压塑性变形的不均匀性,尤其是对于金属颗粒挤压时,非常有利于增强颗粒之间的结合能力。
|
| 关 键 词： | 挤压 莫尔云纹法 剪切变形带 金属颗粒 |
THE EXPERIMENTAL SIMULATION OF DEFORMATION BEHAVIOR OF METALS IN THE CONFORM PROCESS |
| |
| Peng Dashu,Yao Biquan,Zuo Tieyong. THE EXPERIMENTAL SIMULATION OF DEFORMATION BEHAVIOR OF METALS IN THE CONFORM PROCESS[J]. Journal of Central South University:Science and Technology, 1990, 0(5) |
| |
| Authors: | Peng Dashu Yao Biquan Zuo Tieyong |
| |
| Affiliation: | Department of Materials Science and Engineering |
| |
| Abstract: | In this paper,the deformation behavior of the CONFORM(CONtinuousextrusion FORMing)process has been studied by experimental simulation.Inthe experimental arrangement,the frictional force can be taken for drivingforce which makes metals plastic deformation through the die.A Moiremethod is utilized for investigating the plastic flow of metals in the experi-mental simulation.It is found that an Intense Internal Shear Band(IISB)exists in the plastic deformation zone.The existence of the IISB can not onlymitigate the inhomogeneity of plastic deformation,but also can improve theability of plastic deformation of metals. |
| |
| Keywords: | extrusion Moire method shear strain metal particles |
| 本文献已被 CNKI 等数据库收录！ |
