Effect of grain refinement on tensile properties of cast zinc alloys

Liu, Zhilin, Qiu, Dong, Wang, Feng, Taylor, John A. and Zhang, Mingxing (2015) Effect of grain refinement on tensile properties of cast zinc alloys. Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, 47 2: 830-841. doi:10.1007/s11661-015-3229-1


Author Liu, Zhilin
Qiu, Dong
Wang, Feng
Taylor, John A.
Zhang, Mingxing
Title Effect of grain refinement on tensile properties of cast zinc alloys
Journal name Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science   Check publisher's open access policy
ISSN 1073-5623
1543-1940
Publication date 2015-11-18
Sub-type Article (original research)
DOI 10.1007/s11661-015-3229-1
Volume 47
Issue 2
Start page 830
End page 841
Total pages 12
Place of publication New York, NY, United States
Publisher Springer New York
Collection year 2016
Language eng
Formatted abstract
The present work provides an insight into the relationships between grain size, solute content, and tensile properties of binary cast Zn alloys in order to understand the strengthening mechanisms in these alloy systems. Four groups of binary cast Zn-Mg and Zn-Al alloys with different grain sizes were designed. Two groups were produced to investigate the grain refinement strengthening and another two were for investigating the combined strengthening mechanisms of grain refinement and solid solution. Based on experimental results, the empirical relations between yield strength, grain size, solute content, and intrinsic friction were established. Then, the contributions of grain refinement and solid solution strengthening to the yield strength of cast Zn alloys were clarified and understood. Both solid solution strengthening and grain refinement strengthening were distinguished and quantified. The present results show that the variation of yield strength with grain size follows the Hall–Petch relation in both Zn-Mg and Zn-Al systems. Solid solution strengthening is proportional to c0.52 (c represents the solute concentration in atomic percentage). The intrinsic friction of pure Zn was also determined to be around 11 MPa using an analytical method.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mechanical & Mining Engineering Publications
Official 2016 Collection
 
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