王文 Likes:

Affiliation of Author(s):

冶金工程学院

Journal:

Rare Metal Materials and Engineering

Key Words:

中文关键字：搅拌摩擦加工; 铸态AZ31镁合金; 微观组织; 力学性能，英文关键字：friction stir processing; cast AZ31 magnesium allo

Abstract:

Cast AZ31 magnesium alloy was treated by the single-pass and two-pass friction stir processing (FSP) respectively, and the microstructure and mechanical properties were measured experimentally. The results show that FSP causes a remarkable grain refinement and homogenization, and it makes the coarse, network-like eutectic β-Mg17Al12 phase break up and dissolve into the magnesium matrix. There is no obvious preferential orientation in the cast AZ31 alloy and the single-pass FSP specimen. On the contrary, the two-pass FSP specimen exhibits the preferential grain orientation, and (0002) basal plane shows a strong tendency to be arranged parallel to the plate surface. Further, the ultimate tensile strengths of the single-pass and two-pass FSP specimens increase 43 and 82 MPa, and elongations increase 4.3% and 11.9%, respectively. In the FSP condition, the fracture surface of the AZ31 magnesium alloy exhibits ductile fracture characterization.

Note:

王文(SCI)

Co-author:

郭强,吴楠

First Author:

Kuaishe Wang,wangwen

Indexed by:

Journal paper

Volume:

卷：41

Issue:

期：9

Page Number:

页：1522-1526

Translation or Not:

no

Date of Publication:

2012-09-01