P对HAl77-2铝黄铜耐腐蚀性的影响  

Effect of P on Corrosion Resistance of HAl77-2 Aluminum Brass

作　　者：俞梦冰 刘新宽[1] 刘平[1] 陈小红[1] 梅品修 马凤仓[1] 李伟[1] 何代华[1] 张柯[1] YU Meng-bing1, LIU Xin-kuan1, LIU Ping1, CHEN Xiao-hong1, MEI Pin-xiu2, MA Feng-cang1, LI Wei1, HE Dai-hua1, ZHANG Ke1(1.College of Materials Science and Engineering, University of Shanghai for Science ＆Technology, Shanghai 200093, China; 2. Shanghai Yongling Alloy Material Co., Ltd., Shanghai 201802, China)

机构地区：[1]上海理工大学材料科学与工程学院,上海200093 [2]上海咏凌合金材料有限公司,上海201802

出　　处：《铸造》2018年第2期152-156,共5页Foundry

基　　金：国家自然科学基金项目(51201107);上海市教委科研创新项目(11YZ1120);上海市科委基础重点项目(10JC1411800).

摘　　要：为提高HAl77-2铝黄铜在海水和工业冷却水中的耐蚀性,添加微量的P制成合金。运用电化学工作站、金相显微镜、SEM、EDS等设备通过极化曲线分析、脱锌层深度、观察脱锌层形貌、能谱分析,研究了P元素的添加对铝黄铜合金腐蚀行为的影响。结果表明,铝黄铜中加入P极大地提高铝黄铜的极化电阻,从而减小了腐蚀电流,减缓了腐蚀的进行;P可显著提高铝黄铜的耐脱锌腐蚀性能。In order to improve the corrosion resistance of HA177-2 aluminum brass in seawater and industrial cooling water, a small amount of P is added to form an alloy. Through analyzing the polarization curve, the dezincification layer depth, observing the dezincification layer morphology and analyzing spectrum by using equipments like electrochemical workstation, metallurgical microscope, SEM and EDS, the we study the impact of the addition of P element on the corrosion of aluminum brass. The results show that the addition of P in the brass greatly increases the polarization resistance of the aluminum brass, which reduces the corrosion current and slows down the corrosion. P can significantly improve the dezincification corrosion resistance of aluminum brass.

关 键 词：铝黄铜 磷 耐腐蚀性 电化学腐蚀 

分 类 号：TG146.11[一般工业技术—材料科学与工程]