材料科学与工程学报2017，Vol.35Issue(3)：345-351,7.DOI:10.14136/j.cnki.issn1673-2812.2017.03.001
热氧化对Zr基块体金属玻璃腐蚀行为的影响
Effect of Thermal Oxidization on Corrosion Behavior of Zr-based Bulk Metallic Glass
摘要
Abstract
Influence of thermal oxidization on corrosion behavior of Zr-Cu-(Nb)-Ag-AL-Be bulk metallic glasses (BMGs) in CL contained solution were systematically studied.After thermal oxidization∶ thickness with 0.3 ～～ 0.4μm and Al,O enriched oxide layer were formed at surface;corrosion potential and pitting potential of Nb-contained BMG were evidently enhanced,while Nb-free BMG did not show apparently change;surface pit density of BMGs in immersion test decreased and Cu was enriched and Zr depleted inside the pits.In Nb-contained surface,Nb2O5 existed and Cu content was low,but contents of other elements were similar to Nb-free BMG from X-ray photoelectron spectroscopy analyzes.Nb2O5-contained oxide film is denser and CL-diffusion was more effectively impeded,causing greater improvement of corrosion resistance of Nb-contained BMG after oxidation.关键词
块体金属玻璃/腐蚀/热氧化/X射线光电子能谱Key words
bulk metallic glass/corrosion/thermal oxidization/X-ray photoelectron spectroscopy分类
矿业与冶金引用本文复制引用
彭盛,曹庆平,赵向南,王晓东,蒋建中..热氧化对Zr基块体金属玻璃腐蚀行为的影响[J].材料科学与工程学报,2017,35(3):345-351,7.基金项目
国家重点基础研究发展计划资助项目(973)(2012CB825700),国家自然科学基金资助项目(51371157,U14321056),浙江自然科学基金资助项目(Z1110196,LY15E010003),中央高校基本科研基金资助项目(2016FZA4006) （973）
