喷射沉积连续挤压制备2A12铝合金

来源期刊:中国有色金属学报2013年第4期

论文作者:尹建成 汪创伟 周静波 刘英莉 高鹏 李明瀚 钟毅

文章页码:957 - 963

关键词:快速凝固;连续挤压;喷射沉积;难成形材料;显微组织

Key words:rapid solidification; Conform; spray forming; difficult forming materials; microstructure

摘    要:采用自制的喷射沉积连续挤压设备,完成2A12铝合金的喷射沉积连续挤压试验,获得了d 7 mm的铝合金制品,并采用光学显微镜和扫描电镜对其显微组织进行分析。结果表明:在本试验条件下,该制品由帽状的粗晶层和细晶层交替堆垛而成,粗晶层的晶粒尺寸不大于30 μm,细晶层的晶粒尺寸在10 μm以下;该制品内仅有少量尺寸在3 μm以内的孔洞,相对密度可达99.1%。

Abstract: The spray forming Conform experiment of 2A12 aluminum alloy was accomplished by self-made spray forming Conform equipment. Ultimately, the Al alloy rod with diameter of 7 mm is obtained. The microstructure of the Al alloy rod was analyzed by optical microscopy (OM) and scanning electron microscopy (SEM). The results show that the alloy rod is composed of alternately hat-like coarse-grained layer with grain size under 30 μm and fine-grained layer with grain size under 10 μm. There are a little holes with size less than 3 μm, and the relative density of the product is 99.1%.

有色金属在线官网  |   会议  |   在线投稿  |   购买纸书  |   科技图书馆

中南大学出版社 技术支持 版权声明   电话:0731-88830515 88830516   传真:0731-88710482   Email:administrator@cnnmol.com

互联网出版许可证:(署)网出证(京)字第342号   京ICP备17050991号-6      京公网安备11010802042557号