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Microstructural stability of heat-resistant high-pressure die-cast Mg-4Al-4Ce alloy

  • Wei Wang , Jinghuai Zhang , Guoqiang Li , Yan Feng , Minliang Su , Yufeng Jiao , Ruizhi Wu and Zhongwu Zhang
Published/Copyright: May 4, 2017
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 108 Issue 5

Abstract

The thermal stability of Al-RE (rare earth) intermetallic phases with individual RE for heat-resistant high-pressure die-casting Mg–Al–RE alloys is investigated. The results of this study show that the main strengthening phase of Mg-4Al-4Ce alloy is Al11Ce3, whose content is about 5 wt.% according to quantitative X-ray diffraction phase analysis. The Al11Ce3 phase appears to have high thermal stability at 200 °C and 300 °C, while phase morphology change with no phase structure transition could occur for Al11Ce3 when the temperature reaches 400 °C. Furthermore, besides the kinds of rare earths and temperature, stress is also an influencing factor in the microstructural stability of Mg-4Al-4Ce alloy.

Keywords: Mg alloys; Microstructural stability; Creep
*Correspondence address, Dr. Jinghuai Zhang, Key Laboratory of Superlight Material and Surface Technology, Ministry of Education, College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, P. R. China, Tel.: +86-451-82569890, Fax: +86-451-82569890, E-mail: , Web: http://homepage.hrbeu.edu.cn/web/zhangjinghuai

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Received: 2016-11-03
Accepted: 2017-01-25
Published Online: 2017-05-04
Published in Print: 2017-05-15

© 2017, Carl Hanser Verlag, München

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https://doi.org/10.3139/146.111486
Keywords for this article
Mg alloys; Microstructural stability; Creep

Articles in the same Issue

  1. Contents
  2. Contents
  3. Editorial
  4. Downloads and the impact of Open Access at IJMR
  5. Original Contributions
  6. A material selection approach using the TODIM (TOmada de Decisao Interativa Multicriterio) method and its analysis
  7. Investigation of the influence of Fe on the microstructure and properties of Ti5553 near-β titanium alloy with combinatorial approach
  8. Evolution of the temperature, microstructures and microsegregation in equiaxed solidification of Al-5 wt.% Cu alloy
  9. Phase composition and microstructure of materials in the Ir–Ru–B system prepared by arc melting and VHP sintering
  10. Thermal shock behavior of rare earth modified alumina ceramic composites
  11. Investigation of tribological and corrosion properties of CuTi–alumina nanocomposite fabricated by mechanical alloying
  12. Effect of acetic acid on corrosion behavior of AISI 201, 304 and 430 stainless steels
  13. Verification of strength mis-match of electron beam welded heavy thickness titanium alloy
  14. Short Communications
  15. Effect of toughening Fe2B by the addition of tungsten on the wear resistance of Fe–B–C alloy
  16. Microstructural stability of heat-resistant high-pressure die-cast Mg-4Al-4Ce alloy
  17. DGM News
  18. DGM News
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