Effects of Deformation Texture and Grain Size on Corrosion Behavior of Mg–3Al–1Zn Alloy Sheets
Author(s) -
Dawei Li,
HuiYuan Wang,
Dongsong Wei,
Zheng-Xue Zhao,
Yan Liu
Publication year - 2020
Publication title -
acs omega
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.779
H-Index - 40
ISSN - 2470-1343
DOI - 10.1021/acsomega.9b03009
Subject(s) - materials science , electron backscatter diffraction , metallurgy , grain size , corrosion , ultimate tensile strength , alloy , annealing (glass) , elongation , texture (cosmology) , magnesium alloy , composite material , microstructure , artificial intelligence , computer science , image (mathematics)
Effects of deformation texture and grain size on mechanical properties and corrosion behavior of the Mg-3Al-1Zn (AZ31) alloys were systematically investigated. The results revealed that the ultimate tensile strength (UTS) and fracture elongation (FE) significantly increased from 232 to 273 MPa and 12.5 to 26.4%, respectively. According to the immersion and electrochemical measurements, the results indicated that the corrosion resistance of the alloy was improved obviously. Via electron backscattered diffraction (EBSD), corrosion morphology showed that the propagation of local pitting corrosion was suppressed, which is ascribed to grain refinement, higher texture intensity, and lower dislocation density after rolling and subsequent annealing.
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom