微量Cu掺杂对TA10合金组织、力学性能与腐蚀行为的影响  

Impact of Trace Cu Addition on Microstructure,Mechanical Property and Corrosion Behavior of TA10 Alloy

作　　者：杨勇[1] 王斌斌 李妍洁 骆良顺[1] 黄海广 王亮[1] 苏彦庆|[1] 郭景杰[1] 傅恒志[1] YANG Yong;WANG Binbin;LI Yanjie;LUO Liangshun;HUANG Haiguang;WANG Liang;SU Yanqing;GUO Jingjie;FU Hengzhi(National Key Laboralory for Precision Hot Proessing of Metals,School of Materials Science&Engineering,Harbin Institute of Tehnology.Harbin 150001,China;Yumnan Titanium Industry Co..Lid,Chuxiong 651209,China)

机构地区：[1]哈尔滨工业大学材料科学与工程学院金属精密热加工国家级重点试验室,黑龙江哈尔滨150001 [2]云南钛业股份有限公司,云南楚雄651209

出　　处：《材料开发与应用》2022年第3期5-12,20,共9页Development and Application of Materials

基　　金：云南省重大科技专项计划项目(202002AB080001-3);国家自然科学基金项目(52001001,51425402);黑龙江省博士后面上资助(LBH-Z20139)。

摘　　要：研究了掺杂(0.5%~2.5%) Cu元素对TA10合金的微观组织、力学性能及腐蚀性能的影响,采用扫描电子显微镜(SEM)、金相显微镜(OM)研究合金的微观组织,并用XRD进行物相分析;采用电化学腐蚀、静态浸泡腐蚀试验研究合金的腐蚀性能。选出最佳合金成分,并通过原子力显微镜(AFM)对其做进一步分析。结果表明,随着Cu元素含量的增加,TA10合金基体组织被不断细化,添加2.5%Cu时,该合金的硬度值达到最大。Cu含量在1.0%~2.0%之间,合金的耐腐蚀性能较好。含Cu为0.5%的合金耐腐蚀性能优异。The effects of(0.5%~2.5%, w) Cu addition on the microstructure, mechanical property and corrosion behavior of TA10-based alloys are studied. Scanning electron microscopy(SEM) and optical microscopy(OM) are used to study the microstructure of the alloys, and the X-ray diffraction(XRD) is adopted to identify the phase composition. The electrochemical measurements and the static immersion tests are employed to study the corrosion performances of the alloys. After obtaining the alloy with the optimal chemical compositions, its corroded surface morphology is observed by the atomic force microscope(AFM). Results signify that with the increase of Cu content, the matrix structure of TA10 alloy is continuously refined. When the Cu addition is 2.5%, the hardness of the alloy is the maximum. When the Cu addition is in the range of 1.5%~2.0%, the alloy has good corrosion resistance. The alloy with 0.5% Cu presents the best corrosion resistance.

关 键 词：TA10合金 微观组织 力学性能 腐蚀行为 

分 类 号：TG178.2[金属学及工艺—金属表面处理]