纳米晶Cu-50Ag合金在酸性溶液中腐蚀行为研究
发布时间：2018-11-19 13:55
【摘要】：与粉末冶金法(PM)制备的常规尺寸合金对比,研究了通过热压液相还原法(LPR)和机械合金化法(MA)合成的Cu-50Ag合金粉末制备的块体纳米晶Cu-50Ag合金在酸性溶液中的腐蚀行为。结果表明:在Na_2SO_4溶液中加入H_2SO_4后,3种合金的腐蚀速度均加快。随着H_2SO_4浓度的增加,PMCu-50Ag和LPRCu-50Ag合金的腐蚀速度均未发生明显变化,而MACu-50Ag合金的腐蚀速度则加快。在Na_2SO_4溶液中,3种合金均未出现钝化现象,随着H_2SO_4的加入,合金出现了钝化现象。3种合金的腐蚀速率按PMCu-50Ag,LPRCu-50Ag和MACu-50Ag合金的顺序增加,其中LPRCu-50Ag合金的腐蚀速度略大于PMCu-50Ag合金,但明显小于MACu-50Ag合金。
[Abstract]:Compared with conventional size alloys prepared by powder metallurgy (PM), The corrosion behavior of bulk nanocrystalline Cu-50Ag alloy prepared by hot pressure liquid phase reduction method (LPR) and mechanical alloying method (MA) in acidic solution was studied. The results show that the corrosion rate of the three alloys accelerates with the addition of H_2SO_4 in Na_2SO_4 solution. With the increase of H_2SO_4 concentration, the corrosion rates of PMCu-50Ag and LPRCu-50Ag alloys did not change obviously, while the corrosion rates of MACu-50Ag alloys increased. In Na_2SO_4 solution, there was no passivation of the three alloys. With the addition of H_2SO_4, the passivation of the three alloys was observed. The corrosion rates of the three alloys increased in the order of PMCu-50Ag,LPRCu-50Ag and MACu-50Ag alloys. The corrosion rate of LPRCu-50Ag alloy is slightly higher than that of PMCu-50Ag alloy, but obviously smaller than that of MACu-50Ag alloy.
【作者单位】： 沈阳师范大学;
【基金】：国家自然科学基金(51271127) 辽宁省高等学校优秀人才支持计划(LR2011032)
【分类号】：TG146.11
本文编号：2342507
[Abstract]:Compared with conventional size alloys prepared by powder metallurgy (PM), The corrosion behavior of bulk nanocrystalline Cu-50Ag alloy prepared by hot pressure liquid phase reduction method (LPR) and mechanical alloying method (MA) in acidic solution was studied. The results show that the corrosion rate of the three alloys accelerates with the addition of H_2SO_4 in Na_2SO_4 solution. With the increase of H_2SO_4 concentration, the corrosion rates of PMCu-50Ag and LPRCu-50Ag alloys did not change obviously, while the corrosion rates of MACu-50Ag alloys increased. In Na_2SO_4 solution, there was no passivation of the three alloys. With the addition of H_2SO_4, the passivation of the three alloys was observed. The corrosion rates of the three alloys increased in the order of PMCu-50Ag,LPRCu-50Ag and MACu-50Ag alloys. The corrosion rate of LPRCu-50Ag alloy is slightly higher than that of PMCu-50Ag alloy, but obviously smaller than that of MACu-50Ag alloy.
【作者单位】： 沈阳师范大学;
【基金】：国家自然科学基金(51271127) 辽宁省高等学校优秀人才支持计划(LR2011032)
【分类号】：TG146.11
【参考文献】
相关期刊论文 前1条
1 甘阳,李瑛,林海潮;海水中低合金钢局部腐蚀过程的实验室模拟[J];中国腐蚀与防护学报;2001年02期
【共引文献】
相关期刊论文 前5条
1 杨明波;童康明;孔小东;朱梅五;;一种低磁钢耐海水腐蚀性能的研究[J];材料保护;2006年03期
2 刘建容;张万灵;黄桂桥;范植金;;低合金钢WNHS355和E36在海水中的腐蚀性能[J];材料保护;2009年02期
3 赵艳娜;朱元良;郭兴蓬;;月桂酸根离子的吸附及其对N80碳钢垢下局部腐蚀的影响[J];腐蚀与防护;2008年05期
4 吕爱强,张洋,李瑛,刘刚,刘春明;异步轧制对表面纳米化316L不锈钢组织和性能的影响[J];金属学报;2005年03期
5 朱元良;郭兴蓬;;中性介质中碳钢腐蚀沉积膜下局部腐蚀行为[J];中国腐蚀与防护学报;2008年05期
相关硕士学位论文 前2条
1 王晓国;R4s级系泊链闪光焊焊缝组织与性能研究[D];江苏科技大学;2010年
2 高平;R4s级系泊链钢腐蚀疲劳性能研究[D];江苏科技大学;2010年
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