金属加工温度梯度及其不等温韧性

PROCESSING THERMAL GRADIENT AND ANISOTHERMAL DUCTILITY OF MATERIALS

引入不等温韧性的概念，并定义其为不同温度下的断面收缩率。研究表明，材料的不等温韧性与存在于各种工业加工过程中的温度梯度有关。温度梯度越大，不等温韧性越低。

This paper introduced a concept of anisothermal ductility which is defined as the reduction in area obtained at different thermal gradients. It is found that the anisothermal ductility of a material is depended on thermal gradient which exists in all industrial processing routes. The larger the thermal gradient, the lower the anisothermal ductility.