均匀化处理对Al-Mg-Si合金静态酸碱腐蚀性能的影响  

Influence of Homogenization Treatment on Static Acid-base Corrosion Resistance of Al-Mg-Si Alloy

作　　者：袁辉 赵作福[1] 赵宇擎 齐锦刚[1] 李鑫 Yuan Hui;Zhao Zuofu;Zhao Yuqing;Qi Jin'gang;Li Xin(School of Material Science and Engineering,Liaoning University of Technology;College of Chemistry and Chemical Engineering,Inner Mongolia University)

机构地区：[1]辽宁工业大学材料科学与工程学院 [2]内蒙古大学化学化工学院

出　　处：《特种铸造及有色合金》2023年第8期1075-1078,共4页Special Casting & Nonferrous Alloys

基　　金：国家自然科学基金青年基金资助项目(51601086);辽宁省自然科学基金资助项目(2022-MS-381)。

摘　　要：采用扫描电镜、X射线衍射技术等研究了均匀化处理对Al-Mg-Si合金静态酸碱腐蚀性能的影响。结果表明,均匀化处理可有效提高Al-Mg-Si合金凝固组织的均匀化程度与耐蚀性能。均匀化处理的Al-4.5Mg-3Si合金试样,在5%的NaOH溶液中进行20 h静态腐蚀试验,其平均腐蚀速率为115.419 g/(m^(2)·h),约为未处理的1.16倍;而在0.5%的HF溶液中进行20 h静态腐蚀试验,其平均腐蚀速率为147.778 g/(m^(2)·h),为未处理试样的78%。The influence of homogenization treatment on static acid-base corrosion of Al-Mg-Si alloy was investigated by means of scanning electron microscope and X-ray diffraction.The results indicate that the homogenization degree and corrosion resistance of Al-Mg-Si alloy can be effectively improved by homogenization treatment.After static corrosion test in 5% NaOH solution for 20 h,the average corrosion rate of homogenized Al-4.5Mg-3Si alloy is 115.419 g/(m^(2)·h),which is 1.16 times of the untreated ones,while the average corrosion rate is 147.778 g/(m^(2)·h)in 0.5% HF solution for 20 h,which is 78% of the untreated ones.

关 键 词：Al-4.5Mg-3Si合金 静态酸碱腐蚀 均匀化处理 MG2SI 

分 类 号：TG166.3[金属学及工艺—热处理] TG46.21[金属学及工艺—金属学]