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Hot deformation behaviors and processing maps of Mg–Zn–Er alloys based on Gleeble–1500 hot compression simulation

Publication ,  Journal Article
SUN, CC; LIU, K; WANG, ZH; LI, SB; DU, X; DU, WB
Published in: Transactions of Nonferrous Metals Society of China (English Edition)
December 1, 2016

The hot deformation behaviors of as-solution Mg–xZn–yEr alloys (x/y=6, x=3.0, 4.5 and 6.0; y=0.50, 0.75 and 1.00) were investigated on Gleeble–1500 thermal simulator in a temperature range of 200–450 °C at a strain rate of 0.001–1 s−1. The true stress–strain curves showed the dynamic competition between the working hardening and working softening mainly due to the dynamic recrystallization (DRX) occurring during hot compression. The constitutive equations were constructed which could accurately predict the peak stress of the alloys. The addition of Zn and/or Er resulted in higher deformation activation energy for Mg–3Zn–0.5Er (alloy A). The processing maps were constructed as function of the temperature and the strain rate, providing the optimum hot working conditions (i.e., at strain of 0.3, Mg–3Zn–0.5Er (alloy A): 380–430 °C, <0.1 s−1; Mg–4.5Zn–0.75Er (alloy B): 380–450 °C, 0.01–0.1 s−1; Mg–6Zn–1Er (alloy C): 390–440 °C, 0.01–0.1 s−1). The as-solution treated Mg–4.5Zn–0.75Er (alloy B) demonstrated more optimum hot working window comparing with Mg–3Zn–0.5Er (alloy A) and Mg–6Zn–1Er (alloy C).

Duke Scholars

Published In

Transactions of Nonferrous Metals Society of China (English Edition)

DOI

ISSN

1003-6326

Publication Date

December 1, 2016

Volume

26

Issue

12

Start / End Page

3123 / 3134

Related Subject Headings

  • Materials
  • 4019 Resources engineering and extractive metallurgy
  • 4017 Mechanical engineering
  • 4016 Materials engineering
  • 0914 Resources Engineering and Extractive Metallurgy
 

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SUN, C. C., LIU, K., WANG, Z. H., LI, S. B., DU, X., & DU, W. B. (2016). Hot deformation behaviors and processing maps of Mg–Zn–Er alloys based on Gleeble–1500 hot compression simulation. Transactions of Nonferrous Metals Society of China (English Edition), 26(12), 3123–3134. https://doi.org/10.1016/S1003-6326(16)64444-8
SUN, C. C., K. LIU, Z. H. WANG, S. B. LI, X. DU, and W. B. DU. “Hot deformation behaviors and processing maps of Mg–Zn–Er alloys based on Gleeble–1500 hot compression simulation.” Transactions of Nonferrous Metals Society of China (English Edition) 26, no. 12 (December 1, 2016): 3123–34. https://doi.org/10.1016/S1003-6326(16)64444-8.
SUN CC, LIU K, WANG ZH, LI SB, DU X, DU WB. Hot deformation behaviors and processing maps of Mg–Zn–Er alloys based on Gleeble–1500 hot compression simulation. Transactions of Nonferrous Metals Society of China (English Edition). 2016 Dec 1;26(12):3123–34.
SUN, C. C., et al. “Hot deformation behaviors and processing maps of Mg–Zn–Er alloys based on Gleeble–1500 hot compression simulation.” Transactions of Nonferrous Metals Society of China (English Edition), vol. 26, no. 12, Dec. 2016, pp. 3123–34. Scopus, doi:10.1016/S1003-6326(16)64444-8.
SUN CC, LIU K, WANG ZH, LI SB, DU X, DU WB. Hot deformation behaviors and processing maps of Mg–Zn–Er alloys based on Gleeble–1500 hot compression simulation. Transactions of Nonferrous Metals Society of China (English Edition). 2016 Dec 1;26(12):3123–3134.
Journal cover image

Published In

Transactions of Nonferrous Metals Society of China (English Edition)

DOI

ISSN

1003-6326

Publication Date

December 1, 2016

Volume

26

Issue

12

Start / End Page

3123 / 3134

Related Subject Headings

  • Materials
  • 4019 Resources engineering and extractive metallurgy
  • 4017 Mechanical engineering
  • 4016 Materials engineering
  • 0914 Resources Engineering and Extractive Metallurgy