Effect of aging temperature on precipitation behavior and mechanical properties of extruded AZ80-Ag alloy

Release time:2021-07-12

Impact Factor:5.316

DOI number:10.1016/j.jallcom.2015.06.126

Journal:JOURNAL OF ALLOYS AND COMPOUNDS

Key Words:Magnesium alloyAZ80-AgAging behaviorMicrostructural evolutionPrecipitatesMechanical properties

Abstract:Aging behavior and related microstructural evolution of AZ80-Ag alloy as a function of aging temperature are systematically investigated. Results show that Ag addition can significantly enhance the age-hardening response of AZ80, improving its peak hardness and shortening the time to reach the peak simultaneously. Two kinds of continuous precipitates and three kinds of discontinuous precipitates are observed under varying conditions. The volume fraction ratio of continuous precipitates to discontinuous precipitates increases with increasing aging temperature. When aged at 175 degrees C for 38 h, the whole microstructure is invaded by discontinuous precipitates and an ultimate tensile strength of 428 MPa is achieved.

Co-author:Chuming Liu, Xiuzhu Han

First Author:Shilun Yu

Indexed by:Journal paper

Correspondence Author:Yonghao Gao

Document Code:WOS:000361153700065

Discipline:Engineering

First-Level Discipline:Materials Science and Engineering

Document Type:J

Volume:646

Page Number:431-436

ISSN No.:0925-8388

Translation or Not:no

Date of Publication:2015-10-15

Included Journals:SCI、EI