采用XRD、OM和SEM手段研究了Sm(0～2.0％,质量分数,下同)对AZ61合金显微组织和力学性能的影响.结果表明,Sm优先与A1形成高熔点Al2 Sm弥散相,细化合金显微组织,提高时效态合金室温抗拉强度和屈服强度.在研究范围内,加入1.5％ Sm的合金力学性能最优.Sm可以通过细晶强化、Ramakrishnan强化和Gypen固溶强化机制对AZ61合金强度产生影响.
参考文献
| [1] | 李克杰,李全安,谢建昌,李建弘,侯麦珍.稀土在耐热镁合金中的研究应用[J].稀土,2009(03):79-83. |
| [2] | 陈振华.镁合金[M].北京:化学工业出版社,2004:19-22. |
| [3] | Li Ke-jie;Li Quan-an;Jing Xiao-tian .Effects of Sm addition on microstructure and mechanical properties of Mg-6Al-0.6Zn alloy[J].Scripta materialia,2009(12):1101-1104. |
| [4] | Li J Q;Dong X P;Fan Z T et al.Effects of Ce and Sb on the microstructure and properties of AZ91D magnesium ahoy prepared by the.EPC process[J].Rare Metals,2008,22(01):41-45. |
| [5] | Zhang Guoying;Zhang Hui;Gao Ming .Mechanism of Effects of Rare Earths on Microstructure and Properties at Elevated Temperatures of AZ91 Magnesium Alloy[J].Journal of Rare Earths,2007(3):348-351. |
| [6] | 闵学刚 .几种合金元素对改善AZ91合金显微组织和力学性能的作用的研究[D].东南大学,2002. |
| [7] | Purazrang K;Abachi P;Kainer K U .Investigation of the mechanical behaviour of magnesium composites[J].Composites,1994,25(04):296-302. |
| [8] | 于化顺.金属基复合材料及其制备技术[M].北京:化学工业出版社,2006:32-46. |
| [9] | Hiromasa Yabe;Toshiro Kuji .Thermal stability and hydrogen absorption/desorption properties of Mg_(17)Al_(12) produced by bulk mechanical alloying[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2007(1/2):241-245. |
| [10] | N.RAMAKRISHNAN .AN ANALYTICAL STUDY ON STRENGTHENING OF PARTICULATE REINFORCED METAL MATRIX COMPOSITES[J].Acta materialia,1996(1):69-77. |
| [11] | Tao XM;Ouyang YF;Liu HS;Zeng FJ;Feng YP;Du Y;Lin ZP .Ab initio calculation of the total energy and elastic properties of Laves phase C15 Al2RE (RE = Sc, Y, La, Ce-Lu)[J].Computational Materials Science,2008(2):392-399. |
| [12] | 高强.最新有色金属金相图谱大全[M].北京:冶金工业出版社,2005:971-982. |
| [13] | 陈剑锋,武高辉,孙东立,姜龙涛.金属基复合材料的强化机制[J].航空材料学报,2002(02):49-53. |
| [14] | Lasalmonie A;Strudel J L .Influence of grain size on the mechanical behavior of some high strength materials[J].Journal of Materials Science,1986,21:1837-1852. |
| [15] | Caceres C H;Rovera D M .Solid solution strengthening in concentrated Mg-Al alloys[J].Journal of Light Metals,2001,1(03):151-156. |
| [16] | Horst E Friedrich;Barry L Mordike.Magnesium Technology-Metallurgy,Design Data,Applications[M].Germany:Springer Berlin Heidelberg,2006:16-50. |
| [17] | 胡赓祥;蔡珣.材料科学基础[M].上海:上海交通大学出版社,2000:300-312. |
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%