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  • Comparison of Single-Pass Differential Speed Rolling (DSR) and ConventionalRolling (CR) on the Microstructure and Mechanical Properties ofMg5Zn
Title: Comparison of Single-Pass Differential Speed Rolling (DSR) and ConventionalRolling (CR) on the Microstructure and Mechanical Properties ofMg5Zn
Background: The primary hot rolling method implemented is differential speed rolling(DSR). The material is rolled and grains are strained, producing fine dynamic recrystallization(DRX) grains that improve material strength and ductility. Objective: The material introduced and under investigation in this paper is an Mg-based alloy,Mg5Zn (wt. %), whose microstructure is enhanced through a combination of heat treatments withproper temperature and holding time and subsequent plastic deformation through hot rolling toevaluate the effect on mechanical properties Methods: The method involves preheating the material to various temperatures in a range from250ºC to 350ºC and rolling to various thickness reductions to analyze the effect of single-pass differentialspeed rolling (DSR) and conventional rolling (CR) on the DRX process and its influenceon mechanical properties. Results: The effect of single-pass differential speed rolling (DSR) and conventional rolling (CR)on the DRX process shows that the process produces increasing amounts of finer DRX grains athigher rolling reductions, thereby improving the strength and ductility of the material. Conclusion: This investigation demonstrated that single-pass DSR can improve the mechanicalproperties and formability of Mg5Zn more effectively than CR in terms of grain refinement analyzedthrough OM, SEM, and EBSD resulting in enhanced tensile strength and ductility [1].  more » « less
Award ID(s):
2026313
PAR ID:
10451184
Author(s) / Creator(s):
; ; ; ;
Date Published:
Journal Name:
Current Materials Science
Volume:
16
Issue:
4
ISSN:
2666-1454
Page Range / eLocation ID:
431 to 442
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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