采用等径角札制工艺制备了AM60镁合金板材,并对札制前后板材的显微组织与力学性能进行了对比.结果表明:经过等径角札制后,板材晶拉取向由轧制前的(0002)基面取向演化为非基面取向,晶粒细化并有大量细密孪晶出现;板材强度明显提高,抗拉强度由札制前的222MPa增大到 372MPa,屈服强度由156MPa增大到260MPa,断后伸长率略有增加.
参考文献
| [1] | K. Iwanaga;H. Tashiro;H. Okamoto;K. Shimizu .Improvement of formability from room temperature to warm temperature in AZ-31 magnesium alloy[J].Journal of Materials Processing Technology,2004(0):1313-1316. |
| [2] | Kalidindi S R .Modeling anistroptropic strain hardeningand deformation textures in low stacking fault energy material[J].International Journal of Plastisity,2001,17:837-860. |
| [3] | Poss R .Sheet metal production of magnesium[J].Materials Science Forum,2003,419-422:327-336. |
| [4] | Perez-Prado M T;Valle J A;Contreras J M et al.Microstructural evolution during large strain hot rolling of an AM60 Mg alloy[J].Scripta Materialia,2004,50:661-665. |
| [5] | Valle J A;Prado M T;Ruano O A .Texture evolution during large strain hot rolling of the AM61 Mg alloy[J].Materials Science and Engineering A,2003,A355:68-78. |
| [6] | M. Mabuchi;H. Iwasaki;K. Yanase;K. Higashi .LOW TEMPERATURE SUPERPLASTICITY IN AN AZ91 MAGNESIUM ALLOY PROCESSED BY ECAE[J].Scripta materialia,1997(6):681-686. |
| [7] | W.J. Kim;S.I. Hong;Y.S. Kim .Texture development and its effect on mechanical properties of an AZ61 Mg alloy fabricated by equal channel angular pressing[J].Acta materialia,2003(11):3293-3307. |
| [8] | Horita Z.;Furukawa M. .SUPERPLASTIC FORMING AT HIGH STRAIN RATES AFTER SEVERE PLASTIC DEFORMATION[J].Acta materialia,2000(14):3633-3640. |
| [9] | Yu Yoshida;Lawrence Cisar;Shigeharu Kamado .Effect of Microstructural Factors on Tensile Properties of an ECAE-Processed AZ31 Magnesium Alloy[J].Materials transactions,2003(4):468-475. |
| [10] | Koike J .New deformation mechanisims in fine grain Mg alloy[J].Materials Science Forum,2003,419-422:189-194. |
| [11] | 程永奇,陈振华,夏伟军,傅定发.等径角轧制AZ31镁合金板材的组织与性能[J].中国有色金属学报,2005(09):1369-1375. |
| [12] | 程永奇 .AZ31镁合金板材等径角轧制及冲压性能研究[D].湖南大学,2007. |
| [13] | H. Friedrich;S. Schumann .Research for a "new age of magnesium" in the automotive industry[J].Journal of Materials Processing Technology,2001(3):276-281. |
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%