所属单位：

冶金工程学院

发表刊物：

Rare Metal Materials and Engineering

关键字：

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

摘要：

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.

备注：

王文(SCI)

合写作者：

郭强,吴楠

第一作者：

王快社,王文

论文类型：

期刊论文

卷号：

卷：41

期号：

期：9

页面范围：

页：1522-1526

是否译文：

否

发表时间：

2012-09-01