Effects of Aging Treatment on Laser-Welded Mg-Rare Earth Alloy NZ30K-Reference-Cited by-同舟云学术

Effects of Aging Treatment on Laser-Welded Mg-Rare Earth Alloy NZ30K

Published:2013 Issue: Volume:2013 Page:1-7
ISSN:1687-8434
Container-title:Advances in Materials Science and Engineering
language:en
Short-container-title:Advances in Materials Science and Engineering

Author:

Dai Jun¹²^ORCID,Yang Li¹,Li Lili³,Guo Guolin¹,Guo Lanzhong¹

Affiliation:

1. School of Mechanical Engineering, Changshu Institute of Technology, Changshu 215500, China

2. Shanghai Key Laboratory of Materials Laser Processing and Modification, Shanghai 200240, China

3. China Gridcom Company, LTD, Beijing 100070, China

Abstract

Magnesium-rare earth alloys have received extensive attention due to their attractive mechanical properties resulting from high density of precipitation. The precipitation sequence in laser-welded Mg-3Nd-0.2Zn-0.4Zr (NZ30K) alloy during aging treatment at 200°C and 225°C has been investigated using transmission electron microscopy (TEM). The results indicate that the tensile strength of laser-welded NZ30K can be improved significantly after aging treatment at 200°C for 8 h. It is found that the precipitation in laser-welded NZ30K alloy follows the sequence of supersaturated solid solution → β′′(DO19) → β′(fcc).

Funder

Changshu Institute of Technology

Publisher

Hindawi Limited

Subject

General Engineering,General Materials Science

Link

http://downloads.hindawi.com/journals/amse/2013/219347.pdf

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