Influence of superplastic deformation on the structure of high-speed steels of different metallurgical nature

Abstract

1. Superplastic deformation of R6M5 and 10R6M5-MP high-speed steels leads to improvement in their structure including an increase in the degree of dispersion and equiaxiality of the carbide phase and in the alloy content of the solid solution. 2. The degree of improvement in the structure as the result of superplastic deformation conducted under the optimum temperature and rate conditions depends upon the original degree of dispersion and uniformity of distribution of carbide phase in high-speed steels.