Study on the Mg-Zn binary alloys fabricated by gas-phase alloying

7th Global Conference on Materials Science and Engineering

工业技术（总论）;材料科学

Yan, Y.T.^1 ; Niu, L.B.^1 ; Long, Y.X.^1 ; Ma, J.^1

College of Materials Science and Engineering, Xi'An University of Science and Technology, China^1

关键词: Atomic ratio;    Brinell hardness;    Evaporation temperature;    Mg matrix;    Microstructural transformations;    Novel techniques;    Saturated vapor pressure;    Theoretical calculations;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/474/1/012036/pdf
DOI  :  10.1088/1757-899X/474/1/012036

来源: IOP

【 摘 要 】

By adjusting the evaporation temperatures and changing the Mg/Zn atomic ratios (in the range of 0.5 to 4), various Mg-Zn binary alloys were fabricated usofing a novel technique named as gas-phase alloying. The theoretical calculation by the formula of saturated vapor pressure is to determine the evaporation temperature, which is 900-1200K for Mg and 700-1000K for Zn. The specimens were subjected to SEM, EDS, and Brinell hardness examinations. The results obtained show that, regardless of atomic ratios, microstructures include Mg7Zn3 particles and α-Mg matrix, the former is uniformly distributed into the latter. However, with increasing Mg/Zn atomic ratios, the microstructural transformation occurs from columnar precipitation to granular one.