黄铜热变形流动应力的实验研究  

FLOW STRESS OF BRASS AT HOT DEFORMATION

作　　者：管克智[1] 樊百林[1] 周纪华[1] 

机构地区：[1]北京科技大学

出　　处：《金属学报》1996年第7期749-754,共6页Acta Metallurgica Sinica

基　　金：中国有色金属总公司"八五"重点项目

摘　　要：采用恒变形率凸轮压缩试验机对５个黄铜品种的热变形流动应力进行了实验研究，分析了变形温度，变形速率，变形程度对流动应力的影响，同时对不同的数学模型结构形式进行了非线性回归，通过分析比较提出了拟合精度较高的流动应力数学模型．Flow stress curves of five types of brass were experimently studied with a cam plastometer at a constant deformed speed. The effects of the deformed temperature, determed rate and deformated degree to flow stress were analysed. At the same time, non-linear regressions to mathematical models with different structure were conducted. Through comparision and analysis, mathematical models with higher fitting accuracy were proposed.

关 键 词：黄铜 流动应力 数学模型 热变形 

分 类 号：TG146.11[一般工业技术—材料科学与工程]