A Study of the Structure, Mechanical Properties and Corrosion Resistance of Magnesium Alloy WE43 After Rotary Swaging

被引：15
|
作者：
Martynenko, N. S. [1 ,2 ,3 ]
Luk'yanova, E. A. [2 ,3 ]
Morozov, M. M. [3 ]
Yusupov, V. S. [3 ]
Dobatkin, S. V. [1 ,2 ,3 ]
Estrin, Yu. Z. [2 ,4 ]
机构：
[1] Natl Res Technol Univ MISiS, Dept Met Sci & Strength Phys, Moscow, Russia
[2] Natl Res Technol Univ MISiS, Lab Hybrid Nanostruct Mat, Moscow, Russia
[3] Russian Acad Sci, AA Baikov Inst Met & Mat Sci, Moscow, Russia
[4] Monash Univ, Dept Mat Sci & Engn, Melbourne, Vic, Australia
来源：
METAL SCIENCE AND HEAT TREATMENT | 2018年 / 60卷 / 3-4期
基金：
俄罗斯科学基金会;
关键词：
magnesium alloys; rotary swaging; ultrafine-grained structure; strength; corrosion resistance; PURE MAGNESIUM; MG-ND;
D O I：
10.1007/s11041-018-0269-3
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The structure and properties of magnesium alloy WE43 are studied after homogenizing and rotary swaging deformation conducted in several stages with step lowering of the temperature from 400 to 325 degrees C and increasing the extrusion ratio to 2.56 - 2.78. The deformation yields an ultrafine-grained (UFG) structure with a mean size of the structural components about 500 - 800 nm and particles of aMg(41)Nd(5) phase with a mean size of about 300 - 400 nm. The formation of the UFG structure raises the strength of the alloy. The best combination of mechanical properties is provided by swaging with the final temperature 325 degrees C. It is shown that the rotary swaging deformation does not affect the corrosion rate of the alloy measured by the methods of potentiodynamic polarization, loss in the mass and emission of hydrogen.
引用
收藏
页码：253 / 258
页数：6
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