对Y和富La稀土对镁合金AM50微观组织、铸态力学性能和蠕变性能的影响进行了研究.研究结果表明: AM50中加入Y和富La稀土能有效地细化晶粒,由于显微组织的改善,使得AM50合金的室温和高温力学性能均有一定的提高,并明显地改善了AM50镁合金的抗蠕变性能.填加稀土可以在AM50合金晶界处生成稳定的铝稀土化合物,可以明显提高镁合金AM50的常温及高温(150 ℃)力学性能.与加入富La稀土的AM50相比,加入Y提高力学性能及蠕变抗力的作用更明显.
参考文献
| [1] | Robert Brown .Interantional magnesium association 55th annual world conference[J].Light Metals Age,1998,56:86. |
| [2] | Polmear I J .Magnesium alloys and applications[J].Materials Science and Technology,1994,10(01):1. |
| [3] | Robert E;Bob Brown .Magnesium alloys and their applications international conference[J].Light Metals Age,1998,56:94. |
| [4] | 黄晓锋,周宏,何镇明.AZ91D加铈阻燃镁合金氧化膜结构分析[J].中国稀土学报,2002(01):49-52. |
| [5] | YUAN Guang-yin,SUN Yang-shan,ZHANG Wei-min,SUN Jian-rong.Tensile and creep properties of Mg-9Al based alloys containing bismuth[J].中国有色金属学会会刊,2000(04):469. |
| [6] | Carbonneau Y;Couture A;Neste Van et al.On the observation of a new ternary MgSiCa phase in Mg-Si Alloys[J].Metallurgical and Materials Transactions A:Physical Metallurgy and Materials Science,1998,29A:1759. |
| [7] | 祁庆琚,刘勇兵,杨晓红.稀土对镁合金AZ91D摩擦磨损性能的影响[J].中国稀土学报,2002(05):428-432. |
| [8] | HUANG X F;Zhou H;He Zm .Structure analysis of oxidation film of ignition-inhibition on AZ91D magnesium alloy added with cerium[J].Rrae Earth,2003,21:73. |
| [9] | Lu YiZhen;Wang Qudong;Zeng Xiaoqin et al.Effects of rare earths on the microstructure,properties and fracture behavior of Mg-Al alloys[J].Materials Science and Engineering,2000,A278:66. |
| [10] | 陈存中.有色金属熔炼与铸锭[M].北京:冶金工业出版社,1987 |
| [11] | Bronfin B;Katsir M;Aghion E .Preparation and solidification features of AS21 magnesium alloy[J].Materials Science and Engineering A,2001,302:46. |
| [12] | Pettersen G;Westengen H;Hoier R et al.Microstructure of a pressure die cast magnesium-4wt% aluminum alloy modified with rare earth additions[J].Materials Science and Engineering A,1996,207:115. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%