Oxidation and Corrosion Behavior of Magnesium Alloys with Thermal Spray coatings

• Main Authors: Jyun-Ren Jhao, 趙俊任
• Other Authors: Shin-Ying Chang
• Format: Others
• Language: zh-TW
• Published: 2010
• Online Access: http://ndltd.ncl.edu.tw/handle/49287266348699592961

碩士 === 雲林科技大學 === 材料科技研究所 === 98 === In this study, the thermal spraying was used to deposite the coatings on AZ31 magnesium alloy, the influence of the coating materials on the corrosion of AZ31 magnesium was studied. Aluminum, aluminum-silicon alloy and aluminum-copper alloy were used as coating materials. High temperature oxidation tests were carried out at 400 ℃ for 10, 50 and 100 hours. Cross-section microstructure as used to study the products and behavior for high temperature oxidation. A potentiostat was used to measure the corrosion behavior of the coating specimens under different solutions, such as 3.5wt% NaCl and 5wt% NaCl. The microstructure of coatings and substrates was examined by electron probe X-Ray micro analyzer(EPMA).