叶宏,王宾,龙刚,邓代玉.AZ31镁合金表面Al合金化层的制备与性能研究[J].表面技术,2010,39(1):20-22.
YE Hong,WANG Bin,LONG Gang,DENG Dai-yu.Preparation and Properties of Al Alloying on AZ31 Magnesium Alloy[J].Surface Technology,2010,39(1):20-22
AZ31镁合金表面Al合金化层的制备与性能研究
Preparation and Properties of Al Alloying on AZ31 Magnesium Alloy
投稿时间:2009-09-02  修订日期:2010-02-10
DOI:
中文关键词:  镁合金  脉冲钨极氩弧  Al合金化  性能
英文关键词:Magnesium alloy  Pulse current gas tungsten arc  Al alloying  Properties
基金项目:重庆市科委应用基础项目(2008BB4330)
作者单位
叶宏 重庆理工大学,重庆400050 
王宾 重庆理工大学,重庆400050 
龙刚 重庆铁马工业集团有限公司,重庆400050 
邓代玉 重庆理工大学,重庆400050 
AuthorInstitution
YE Hong Chongqing University of Technology, Chongqing 400050, China 
WANG Bin Chongqing University of Technology, Chongqing 400050, China 
LONG Gang Chongqing Tiema Industries Corporation, Chongqing 400050, China 
DENG Dai-yu Chongqing University of Technology, Chongqing 400050, China 
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中文摘要:
      为提高镁合金表面的耐蚀性,采用热喷涂技术在AZ31镁合金表面制备铝涂层,并利用脉冲钨极氩弧表面熔覆的方法进行表面重熔,获得富铝的合金化层,分析了合金化层的组织结构和性能。研究结果表明:在AZ31镁合金表面的铝合金化层中存在典型的树枝晶结构,含有金属间化合物Mg2Al3,Mg17Al12以及α-Mg和Al固溶体。显微硬度测试表明,铝合金化可使AZ31镁合金表面硬度由HV50左右提高到HV200左右。极化曲线测试表明,合金化层提高了镁合金表面的耐蚀性。
英文摘要:
      In order to improve surface properties of magnesium alloy, Al coating on the AZ31 magnesium alloy was prepared by the thermal spraying,and the Al-rich layer was obtained by pulse current gas tungsten arc melting. The microstructure and properties of the alloying layer were analyzed. The results show that the alloying layer has a typical dendritic structure, the alloying layer consistes of phases of Mg2Al3, Mg17Al12,α-Mg and Al. The microhardness is increased from about HV50 to about HV200. The potentiodynamic polarization results confirmed that the corrosion resistance is enhanced.
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