采用石英粉和石英砂与纯镁原位反应自生获得Mg2Si相,在不同温度下浇铸制备高Si含量的Mg-Si二元合金,分析原位反应的热力学条件、合金的凝固过程、组织形态及分布.结果表明,在实验条件下石英与纯镁原位自生反应可以自发进行,随着Si含量的提高,合金中的Mg2Si相以汉字状、枝晶状及初生块状形态.采用石英粉更易于原位自生获得Mg2Si相,浇注温度越高Mg2Si相分布越均匀.
参考文献
| [1] | Tianmo Liu;Jianzhong Liu;Liwei Lu .Change-Channel Angular Extrusion of Magnesium Alloy AZ31[J].Materials transactions,2009(4):765-770. |
| [2] | 徐春杰,郭学锋,张忠明,贾树卓,刘礼.热挤压快速凝固AZ91D镁合金棒材的组织与性能[J].兵器材料科学与工程,2006(01):9-13. |
| [3] | 徐春杰,郭学锋,刘礼,张忠明.往复挤压准晶增强快速凝固Mg92.5Zn6.4Y1.1合金[J].中国稀土学报,2007(02):224-228. |
| [4] | Guo Xuefeng;Sergei Remennik;Xu Chunjie et al.Development of Mg-6Zn-1Y-0.6Ce-0.6Zr magnesium alloy and its microstructural evolution during processing[J].Materials Science and Engineering A,2008,473(1/2):266-273. |
| [5] | Honma T;Ohkubo T;Kamado S et al.Effect of Zn additions on the age hardening of Mg-2.0Gd-1.2Y-0.2Zr alloys[J].Acta Materialia,2007,55(12):4137-4150. |
| [6] | Sebastian W;Droeder K;Schumann S.Properties and processing of magnesium wrought products for automotive application[A].Munich,Germany:DGM Inter Congress,2000:602-608. |
| [7] | Liu Bin;Zhang Milin;Wu Ruizhi .Effects of Nd on microstructure and mechanical properties of as-cast LA141 alloys[J].Materials Science and Engineering,2008,487:347-351. |
| [8] | MIN SOO YOO;KWANG S. SHIN;NACK J. KIM .Effect of Mg_2Si Particles on the Elevated Temperature Tensile Properties of Squeeze-Cast Mg-Al Alloys[J].Metallurgical and Materials Transactions, A. Physical Metallurgy and Materials Science,2004(5):1629-1632. |
| [9] | Jung J Y;Kim I H .Synthesis and thermoelectric properties of n-type Mg2Si[J].Electronic Materials Letters,2010,6(04):187-191. |
| [10] | 贾树卓,徐春杰,郭学锋,郑水云,张忠明,吕涛.热处理对原位自生Mg2Si/Mg-Al基复合材料组织与性能的影响[J].材料热处理学报,2006(06):25-28. |
| [11] | Zhang Z M;Xu C J;Guo X F et al.Reciprocating extrusion of in-situ Mg2Si reinforced Mg-Al based composite[J].Acta Metallurgica Sinica:English Letters,2008,21(03):169-177. |
| [12] | 卢晨,卫中山,黄晓锋,刘满平,丁文江.耐热镁合金的研究进展[J].铸造,2005(02):112-114. |
| [13] | Blum W;Zhang P;Watzinger B et al.Comparative study of creep of the die-cast Mg-alloys AZ91,AS21,AS41,AM60and AE42[J].Materials Science and Engineering A,2001,319/321:735-740. |
| [14] | 刘志文,严红革,朱素琴,唐治,陈吉华.以微细Si粉为原料制备Mg-2Si合金的研究[J].特种铸造及有色合金,2010(04):376-379. |
| [15] | 陈晓,傅高升,钱匡武,王连登.原位反应自生MgO/Mg2Si增强镁基复合材料的热力学和动力学研究[J].铸造技术,2003(04):321-323. |
| [16] | Gale W F;Totemeier T C.Smithells metals reference book[M].Materials Research and Education Center,USA:Auburn,AL:249-272. |
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