Journal
ACTA METALLURGICA SINICA-ENGLISH LETTERS
Volume 30, Issue 5, Pages 464-469Publisher
CHINESE ACAD SCIENCES, INST METAL RESEARCH
DOI: 10.1007/s40195-016-0520-0
Keywords
Magnesium alloys; W-phase; Spheroidizing; Kinetics; Microstructure; Mechanical properties
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Funding
- National Natural Science Foundation of China [51474153, 51574175]
- Ph.D. Programs Foundation of Ministry of Education of the People's Republic of China [20111402110004]
- Natural Science Foundation of Shanxi Province [2009011028-3, 2012011022-1]
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The spheroidizing mechanism of W-phase in the Mg-Zn-Y-Mn-(B) alloys during solid-solution treatment was investigated by using kinetic methodologies. The microstructure and mechanical properties of heat-treated Mg94Zn2.5Y2.5Mn1 alloy containing 0.003 wt% B were compared with heat-treated Mg94Zn2.5Y2.5Mn1 alloy. The heat-treated Mg94Zn2.5Y2.5Mn1 alloy with 0.003 wt% B contained fine and uniform W-phase particles, which exhibited optimal mechanical performance. The ultimate tensile strength, yield strength and elongation were 287.7, 125.5 MPa and 21.1%, respectively.
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