研究了Mg-9Gd-4Y-0.6Zr合金挤压T5态在250～400℃之间的高温组织与力学性能. 结果表明:该合金具有非常优异的高温力学性能,其力学性能明显优于WE54;该合金在250、300、350和400℃时的抗拉伸强度分别为348、262、150和62MPa;该合金在400℃拉伸时还具有粗晶超塑性,晶界上有再结晶的细晶,晶内有大量孪晶同时共存.
参考文献
| [1] | Mordike BL. .Creep-resistant magnesium alloys[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2002(1-2 Special Issue SI):103-112. |
| [2] | KOUICHI MARUYAMA;MAYUMI SUZUKI;HIROYUKI SATO .Creep Strength of Magnesium-Based Alloys[J].Metallurgical and Materials Transactions, A. Physical Metallurgy and Materials Science,2002(3a):875-882. |
| [3] | 李德辉,李志成,刘路,邹壮辉.时效对Mg-Y-Nd合金的影响[J].材料研究学报,2003(05):483-488. |
| [4] | 沙桂英,韩恩厚,于涛,徐永波,刘路,高国忠.Mg-Y-Nd合金的蠕变行为及其微观机制[J].金属学报,2003(10):1025-1030. |
| [5] | Ifeanyi Anthony Anyanwu;Shigeharu Kamado;Yo Kojima .Aging Characteristics and High Temperature Tensile Properties of Mg-Gd-Y-Zr Alloys[J].Materials transactions,2001(7):1206-1211. |
| [6] | Ifeanyi Anthony Anyanwu;Shigeharu Kamado;Yo Kojima .Creep Properties of Mg-Gd-Y-Zr Alloys[J].Materials transactions,2001(7):1212-1218. |
| [7] | Shigeru I;Yuji N;Shigeharu K et al.Age hardening characteristics and high temperature tensile properties of Mg-Gd and Mg-Dy alloys[J].Japanese Journal of Institute of Light Metals(Japan),1994,44(01):3-8. |
| [8] | Shigeharu K;Yutaka K;Yoshitada H .High temperature deformation characteristics and forgeability of Mg-Heavy rare earth element-Zr alloys[J].Japanese Journal of Institute of Light Metals(Japan),1998,48(04):168-173. |
| [9] | Kawabata T;Matsuda K;Kamado S et al.HRTEM observation of the precipitates in Mg-Gd-Y-Zr alloy[J].Materials Science Forum,2003,419-422:303-306. |
| [10] | Honma T;Ohkubo T;Hono K et al.Chemistry of nanoscale precipitates in Mg-2.1Gd-0.6Y-0.2Zr(%)alloy investigated by the atom probe technique[J].Materials Science and Engineering A,2005,A395:301-306. |
| [11] | 彭卓凯,张新明,陈健美,肖阳,蒋浩,邓桢桢.Mn,Zr对Mg-Gd-Y合金组织与力学性能的影响[J].中国有色金属学报,2005(06):917-922. |
| [12] | Z.-K. Peng;X.-M. Zhang;J.-M. Chen .Grain refining mechanism in Mg-9Gd-4Y alloys by zirconium[J].Materials Science and Technology: MST: A publication of the Institute of Metals,2005(6):722-726. |
| [13] | Cahn R W.非铁合金的结构和性能[M].北京:科学出版社,1999 |
| [14] | 陈振华.镁合金[M].北京:化学工业出版社,2004 |
| [15] | 陈振华.变形镁合金[M].北京:化学工业出版社,2005 |
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%