学术
摘 要:
重点探讨了一种制备SiCp／6066Al复合材料的新工艺，即高能球磨法与粉末冶金技术相结合，采用低温长时分段式烧结和低温快速热挤压工艺成功制备了高性能的10%SiCp／6066Al复合材料．研究了材料的微观组织结构和力学性能．材料的平均屈服强度、抗拉强度、延伸率与工艺相同但采用高温短时烧结相比，分别提高了82％，65％和300％．采用高能球磨法混料和低温快速热挤压工艺相结合，是实现增强体颗粒均匀分布的最有效方法。[著者文摘]
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文章出处:
《西南师范大学学报：自然科学版》-2005年30卷5期 -888-892页
分 类 号:
文献标识码:
A
文章编号:
1000-5471（2005）05-0888-05
Research on the Preparation of SiCp/6066Al Composites
SUN Xu-wei, ZENG Su-min, CHEN Zhi-qian, CHENG Nan-pu （School of Materials Science and Engineering, Southwest University, Chongqing 400715, China）
Abstract:
A new way of preparing SiCp/6066Al composites is discussed. It is high energy ball milling working with powder metallurgy method. High performance SiCp/6066Al composites were successfully fabricated by long time stepped sintering at low temperature and quick hot extrusion. Microstructure and mechanical properties of SiCp/6066Al were investigated. The average yield and ultimate strengths and elongation of SiCp/6066Al increase by a factor of 82%, 65% and 300% respectively, compared with the SiCp/6066Al fabricated by the same process just with short time stepped sintering at high temperature. The results indicate that high energy hall milling together with low temperature quick hot extrusion is the most effective method for obtaining homogenous distribution of reinforcers.[著者文摘]
Key words:
high energy ball milling; powder metal lurgy; SiCp/6066Al composites; sintering; hot extrusion
基金资助:
西南大学高新技术培育基金资助项目（XSGX03）.
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