摘要
在试验的基础上研究了经2种塑性变形(锻造、等径角挤压变形)的奥氏体不锈钢完全再结晶后的组织与性能。研究结果表明,完全再结晶退火后,经锻造、等径角挤压变形得到的晶粒尺寸与屈服强度的关系有明显的差异,塑性变形方法对Hall-Petch关系有显著的影响;等径角挤压变形试验料的晶粒尺寸满足Hall-Petch关系;超大塑性变形(ECAP)会降低奥氏体不锈钢完全再结晶后的屈服强度。
The microstructure and properties of austenitic stainless steel produced by forging or equal channel angular pressing （ECAP） and followed by recrystallization annealing treatment were investigated. The results show that the relationship between grain size and yield strength is obviously different for forged and ECAP steels, the mode of plastic deformation has great influence on Hall-Petch relation. The grain size of ECAP steel obeys Hall-Petch relation. ECAP decreases the yield strength of recrystallized steel.
出处
《钢铁》
CAS
CSCD
北大核心
2007年第2期47-50,63,共5页
Iron and Steel
基金
国家高技术研究发展计划(863计划)资助项目(2002AA302501)
