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出 处:《腐蚀与防护》2013年第7期609-612,共4页Corrosion & Protection
摘 要:采用旋转弯曲疲劳试验机和电极电位测量装置研究了40Cr钢经表面处理后(离子氮化、化学镀镍、喷铝和电镀锌铁合金)在3%NaCl溶液中的腐蚀疲劳行为,并且监测了腐蚀疲劳过程中这4种表面处理后材料的腐蚀电位。结果表明,4种表面处理均能改善40Cr钢的腐蚀疲劳性能,且金属材料在腐蚀疲劳过程中腐蚀电位的变化,在一定程度上反映了腐蚀疲劳断裂过程的重要阶段,揭示了腐蚀疲劳过程的电化学行为。The effects of surface treatment including ion intruding, electroless platingnickel, Al sparing and Zn-Fe alloy plating on the corrosion fatigue behavior of 40Cr steel in 3%NaC1 solution were investigated by the rotating bending fatigue testing, and the corrosion potentials of the steel after above four kinds of surface treatment were measured during the testing. The results show that all these four kinds of surface treatment can improve the corrosion fatigue performance of 40Cr steel. The variation of the corrosion potentials of the steel during the corrosion fatigue testing reflected the main stages of the corrosion fatigue fracture in some degrees and revealed the electrochemical behavior of the corrosion fatigue fracture.
分 类 号:TG171[金属学及工艺—金属表面处理]
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