【摘要】 残余应力对硬质合金材料的性能及使用有重大影响,但有关应力测量的报道尚不多。采用胶结相作为测试对象较为合理,但在测定中却遇到了难以克服的困难。以此,作者提出用材料的主要物相——WC 作为测量依据,并制定了具体的方案及程序。又以模具为例,提供了几种状态下的测定结果并作了较详尽的分析讨论。测定结果表明:再现性是良好的,各种状态下材料应力的变化是显著的,合乎逻辑的。更多还原

【Abstract】 The residual stress in hard alloys has an important influence on theproperties and uses of the material,but reports on the measurement are stillfew.Using a cohesive phase for measurement is appropriate,but difficultiesare encountered.The writers suggested that tungsten carbide(WC),the mainphase in the material may be used as the basis of measurement.Method andprogrammes are laid down,results,analyses and discussions are given.Theresults indicate that the reproducibility is satisfactory,the change of stressin different conditions is remarkable and logical.更多还原