Hot compression deformation characteristics of Mg-Mn alloys

被引：5

作者：

Fang Chao ^{[1
]}

Zhang Jing ^{[1
,2
]}

Liao Ai-lin ^{[1
]}

Xue Shao-zhan ^{[1
]}

Yuan Fu-qing ^{[1
]}

Pan Fu-sheng ^{[1
,2
]}

机构：

[1] Chongqing Univ, Coll Mat Sci & Engn, Chongqing 400044, Peoples R China

[2] Natl Engn Res Ctr Magnesium Alloys, Chongqing 400044, Peoples R China

来源：

TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2010年 / 20卷 / 10期

关键词：

magnesium alloy; thermal deformation; flow stress; constitutive equation; MAGNESIUM ALLOY;

D O I：

10.1016/S1003-6326(09)60383-6

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The hot deformation behaviors of solution treated Mg-1.8Mn-0.4Er-0.2Al alloys were investigated by means of compression tests on Gleeble-1500 in strain rate range of 0.01-10 s(-1), deformation temperature range of 250-450 degrees C and a true strain of 0.6. The constitutive relationships among flow stress, strain rate and deformation temperature were described by Arrhenius-type equations, based on the fact that the material constants could be calculated under a wide range of strains. The results show that the flow stress of the experimental alloy decreases with temperature increasing and strain rate decreasing. Under the experimental conditions, the products of constant a and n in the constitutive equation are stable within certain strains, and the deformation activation energy ranges from 160 to 220 kJ/mol. It is proved that the values of calculated flow stress are close to the experimental results with average error of 2.01%.

引用

页码：1841 / 1845

页数：5

共 16 条

[11]

[翁康荣 WENG Kangrong], 2006, [热加工工艺, Hot Working Technology], V35, P1

[12]

WENG KR, 2007, LIGHT ALLOY FABRICAT, V35, P41

[13]

Xu Guo-fu, 2006, Chinese Journal of Nonferrous Metals, V16, P768

[14]

Yang Jun-jun, 2004, Chinese Journal of Nonferrous Metals, V14, P620

[15]

Yang Z., 2008, Acta Metallurgica Sinica, V21, P313, DOI DOI 10.1016/S1006-7191(08)60054-X

[16]

Yu Kun, 2003, Chinese Journal of Nonferrous Metals, V13, P277

← 1 2 →