材料工程2017，Vol.45Issue(4)：21-26,6.DOI:10.11868/j.issn.1001-4381.2015.000086
冷金属过渡条件下AZ61镁合金在两种钢板上的润湿行为
Wetting Behavior of Molten AZ61 Magnesium Alloy on Two Different Steel Plates Under the Cold Metal Transfer Condition
摘要
Abstract
The wetting behavior and interfacial microstructures of molten magnesium AZ61 alloy on the surface of two different Q235 and galvanized steel plates under the condition of cold metal transfer were investigated by using dynamic sessile drop method.The results show that the wetting behavior is closely related to the wire feed speed.Al-Fe intermetallic layer was observed whether the substrate is Q235 steel or galvanized steel, and the formation of Al-Fe intermetallic layer should satisfy the thermodynamic condition of such Mg-Al/Fe system.The wettability of molten AZ61 magnesium alloy is improved with the increase of wire feed speed whether on Q235 steel surface or on galvanized steel surface, good wettability on Q235 steel surface is due to severe interface reaction when wire feed speed increases, good wettability on galvanized steel surface is attributed to the aggravating zinc volatilization.When the wire feed speed is ≤10.5m·min-1, the wettability of Mg alloy on Q235 steel plate is better than on galvanized steel plate.However, Zn vapor will result in instability for metal transfer process.关键词
冷金属过渡/镁-钢异种金属/润湿性/界面结构Key words
cold metal transfer/magnesium-steel dissimilar metal/wettability/interface structure分类
矿业与冶金引用本文复制引用
曾承宗,林巧力,曹睿,陈剑虹..冷金属过渡条件下AZ61镁合金在两种钢板上的润湿行为[J].材料工程,2017,45(4):21-26,6.基金项目
国家自然科学基金资助项目(51265028,51301083) （51265028,51301083）
