Effects of Solution and Cryogenic Treatments on Microstructures and Mechanical Properties of AZ31 Alloy Tubes

Bao Yi Yu; Qian Qian Luo; Yang Li; Yu Juan Wu; Run Xia Li

doi:10.4028/www.scientific.net/AMR.750-752.760

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 750-752Effects of Solution and Cryogenic Treatments on...

Effects of Solution and Cryogenic Treatments on Microstructures and Mechanical Properties of AZ31 Alloy Tubes

Abstract:

In order to improve plastic property of AZ31 alloy tubes at room temperature and expand application of cold rolling process in magnesium (Mg) alloys, solution treatment (T4) and cryogenic treatment of AZ31 tubes obtained by drawing were investigated in this work. The results indicate that T4 can improve the microstructure of the alloy, refine grains and eliminate twins. The optimized T4 parameter is 300 °C for 8 h, in which the average grain size of 12 μm can be obtained and elongation reaches to Max of 16.1% and tensile strength reaches to 242 MPa. Moreover, tensile strength was decreased to 211 MPa, while, elongation was improved to 25.4% by T4+cryogenic treatment at-196 °C.

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Periodical:

Advanced Materials Research (Volumes 750-752)

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760-764

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.750-752.760

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Online since:

August 2013

Authors:

Bao Yi Yu, Qian Qian Luo, Yang Li, Yu Juan Wu*, Run Xia Li

Keywords:

AZ31 Alloy, Cryogenic Treatment, Mechanical Property, Microstructure, Solution Treatment

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