CAJ | 학술논문

采用超塑性变形强化的新工艺对模具钢3Cr2W8V的Ni60喷熔层进行了研究．通过试验得到了3Cr2W8V基体和Ni60热喷熔层间实现超塑性协调变形的工艺参数，并研究了异材间的超塑性协调变形条件，建立了超塑性协调变形的力学模型．对喷熔层的表面性能试验结果表明，超塑性变形工艺对喷熔层具有明显的强化作用，经超塑性变形处理的喷熔层其摩擦磨损、多次冲击和热疲劳性能均得到了显著提高．
채용초소성변형강화적신공예대모구강3Cr2W8V적Ni60분용층진행료연구．통과시험 득도료3Cr2W8V기체화Ni60열분용층간실현초소성협조변형적공예삼수，병연구료이재간적초 소성협조변형조건，건립료초소성협조변형적역학모형．대분용층적표면성능시험결과표명，초소 성변형공예대분용층구유명현적강화작용，경초소성변형처리적분용층기마찰마손、다차충격화열 피로성능균득도료현저제고．
Using the process of superplastic deformation strengthening, the Ni60 flame spraying coating on 3Cr2W8V substrate was studied. Through experiments, the reasonable parameters for superplastic co-deformation between 3Cr2W8V substrate and Ni60 spraying coating were gained, the superplastic co-deformation terms between different materials were studied and its mechanical model was developed as well. The comparison experiments of the coating's properties of wear resistance, repeated impact and thermo-fatigue indicate that the coating is obviously strengthened by the use of superplastic co-deformation process.