Paper Title:
Superplasticity in Friction Stir Processed AZ80 Magnesium Alloy
  Abstract

Superplasticity in an AZ80 magnesium alloy subjected to friction stir processing (FSP) has been investigated. FSP was carried out at two traveling speeds of 150mm/min and 300mm/min for grain refinement. Optical microscopy on cross section to processing direction revealed obvious differences in size and feature between the stir zones at the two traveling speeds. The hardness of FSPed sample at the room temperature was about 30HV higher than that of as-received one. The maximum stress of the FSPed sample was reduced remarkably at lower strain rates compared with those of the as-received one at 573K and 673K. On the other hand, the elongation to failure of the FSPed sample showed ten to thirteen times larger than that of the as-received one at 573K and low strain rates. Further surface morphology near the fracture tip was observed by scanning electron microscopy to discuss deformation mechanism at high temperatures.

  Info
Periodical
Edited by
Daniel G. Sanders
Pages
241-246
DOI
10.4028/www.scientific.net/KEM.433.241
Citation
Y. Takayama, I. Takeda, T. Shibayanagi, H. Kato, K. Funami, "Superplasticity in Friction Stir Processed AZ80 Magnesium Alloy", Key Engineering Materials, Vol. 433, pp. 241-246, 2010
Online since
March 2010
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Yoshimasa Takayama, Y. Otsuka, Toshiya Shibayanagi, Hajime Kato, Kunio Funami
Abstract:Grain refinement and high temperature deformation in two kinds of magnesium alloys subjected to friction stir processing (FSP) have been...
55
Authors: Mahmood Fatemi Varzaneh, Jose María Cabrera, Abbas Zarei Hanzaki
Abstract:A new continuous severe plastic deformation (SPD) method called accumulative back extrusion (ABE) was employed to fabricate ultra-fine...
1033
Authors: Geng Hua Cao, Da Tong Zhang
Symposium O: Advanced Magnesium Alloys and Application
Abstract:Mg-2.5wt%Y-4wt%Nd-0.5wt%Zr casting alloy was subjected to submerged friction stir processing (SFSP) with different rotation rates (ω) and...
404
Authors: Wai Hoe Loke, Raafat Ibrahim, Sri Lathabai
Chapter 3: Superplastic Materials
Abstract:Friction stir processing (FSP) is a novel thermo-mechanical technique for modifying the microstructure of metals and alloys at targeted...
214