摘要
文章采用正交试验法研究了SIMA法制备3A21合金半固态坯料工艺参数的影响。结果表明,等温处理时间是晶粒细化的最主要因素;热变形量是晶粒圆整的最主要因素;热变形量为60%,冷变形量为15%,等温处理温度为661℃,等温处理时间为16 min,是较为理想的工艺参数。
Influences of technical parameters on preparing the semi-solid slurries of 3A21 alloy are investigated by the orthogonal test using the strain induced melt activation（SIMA） process under the experimental condition. The results show that the main factor for grain to refine is the holding time, that the main factor in obtaining globular grains is the thermal deformation, and that the best technical parameters are as follows： the thermal deformation 60%, the cold deformation 15%, the heat holding temperature 661℃ and the heat holding time 16 min.
出处
《合肥工业大学学报（自然科学版）》
CAS
CSCD
北大核心
2008年第9期1408-1411,共4页
Journal of Hefei University of Technology：Natural Science
基金
安徽省自然科学基金资助项目(070414148)
