Paper Title:
Effect of Chip Size on Semi-Solid Microstructure of AZ91D Magnesium Alloy Prepared by CRP Process
  Abstract

In this paper, chip recycled pressing process (CRP for short), a new method for recycling magnesium alloy chips, was put forward to prepare semi-solid billet. AZ91D magnesium alloy chips of different sizes were respectively recycled to prepare semi-solid billet by CRP process. Effect of chip size on compactness, microstructure and oxidation of CRP billet were investigated. And then CRP billet were heated to semi-solid state and its semi-solid microstructures were studied. The results showed that with the increase of chip thickness, grain refinement effect weakened, deformation uniformity aggravated and oxygen content of CRP billet decreased. Under the same CRP process conditions, the relative densities of four kind of CRP billet were 98.27%, 98.13%, 98.05% and 97.92%, respectively. Meanwhile, there was no significant difference in compactness and microstructure between them. Normally, oxygen content was not more than 1.8% and uniformly dispersed in CRP billet. Hence, the influence of size and deformation inhomogeneity of chip on compactness and microstructure of CRP billet were eliminated via CRP process. In CRP billet, microstructure and strain were uniform and this inherited during semi-solid isothermal treatment.

  Info
Periodical
Solid State Phenomena (Volume 256)
Chapter
Chapter 2: Materials Development and Characterization
Edited by
Ahmed Rassili
Pages
45-50
DOI
10.4028/www.scientific.net/SSP.256.45
Citation
H. Y. Xu, Z. S. Ji, Y. Wang, M. L. Hu, H. B. Wang, S. Sugiyama, "Effect of Chip Size on Semi-Solid Microstructure of AZ91D Magnesium Alloy Prepared by CRP Process", Solid State Phenomena, Vol. 256, pp. 45-50, 2016
Online since
September 2016
Export
Price
$35.00
Share
* Corresponding Author

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

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

Authors: Hwa Chul Jung, Ye Sik Kim, Kwang Seon Shin
Abstract:The demand for magnesium alloys has increased significantly during the past decade in the automotive and electronic industries where weight...
397
Authors: Zhi Min Zhang, Qiang Wang, B.C. Li, X. Zhang
Abstract:Warm compression tests of AZ31 Mg alloy were carried out at five temperatures in 30°C intervals from 210°C to 330°C. The samples of...
1813
Authors: Hyeon Taek Son, J.M. Hong, Ik Hyun Oh, Jae Seol Lee, T.S. Kim, Kouichi Maruyama
Abstract:Mg97Zn1Y2 alloy powders were prepared from gas atomization process, followed by consolidation using spark plasma sintering (SPS) process....
1517
Authors: Da Zhi Zhao, Fu Xiao Yu, Fang Liu, Ke Zhun He
Chapter 2: Micro / Nano Materials
Abstract:The billets of AlMg0.9Si0.7 alloy, which were cast through the direct chill (DC) casting process of low superheat, were...
549
Authors: W.M. Mao, Z.Z. Chen, H.W. Liu, Y.G. Li
Chapter 4: Process Development
Abstract:The semi-solid slurry of A356 aluminum alloy was prepared through a serpentine pouring channel, which is a new method proposed recently for...
404