原位反应制备Cu-Y_(2)O_(3)弥散强化铜中机械合金化进程  

Mechanical alloying processing in Cu-Y_(2)O_(3) prepared by in-situ reaction

作　　者：马冰 王宏博 菱沼良光 黄波 秦永强[1,4] 罗来马[1,4] 吴玉程[1,4] MA Bing;WANG Hongbo;HISHINUMA Yoshimitsu;HUANG Bo;QIN Yongqiang;LUO Laima;WU Yucheng(School of Materials Science and Engineering,Hefei University of Technology,Hefei 230009,Anhui,China;National Institute for Fusion Science,Toki 509-5292,Gifu,Japan;Sino-French Institute of Nuclear Engineering and Technology,Sun Yat-Sen University,Zhuhai 519082,Guangdong,China;Engineering Research Center of High Performance Copper Alloy Materials and Processing,Ministry of Education,Hefei University of Technology,Hefei 230009,Anhui,China)

机构地区：[1]合肥工业大学材料科学与工程学院,安徽合肥230009 [2]日本核融合科学研究所,日本土岐5095292 [3]中山大学中法核工程与技术学院,广东珠海519082 [4]合肥工业大学高性能铜合金材料及成形加工教育部工程研究中心,安徽合肥230009

出　　处：《金属功能材料》2023年第6期1-9,共9页Metallic Functional Materials

基　　金：国家自然科学基金资助项目(12305301,12205071);国家重大研发计划磁约束核聚变重大专项(2022YFE03140000,2022YFE03140004);安徽省重点研究与开发计划(202304a05020035);安徽省高校协同创新项目(GXXT-2022-005);安徽芜湖市科技项目(2022hg14);磁约束聚变安徽省实验室开放基金项目(2022AFM02003);合肥工业大学创新训练项目(S202310359032)。

摘　　要：基于原位反应原理,采用机械合金化(MA)和热等静压(HIP)制备工艺制备了Y_(2)O_(3)质量分数为3%的弥散强化铜基复合材料(ODS-Cu)。实验探讨机械合金化进程中材料微观结构和物理性能的演化规律。结果表明,Y元素和CuO原位氧化剂可通过反应生成Y_(2)O_(3)弥散颗粒,且Y_(2)O_(3)颗粒含量不受机械合金化进程的影响。在机械合金化初期,富Y颗粒的破碎、球磨颗粒的碾压及冷焊起主要作用,导致球磨尺寸增大;而机械合金化后期固溶元素主导晶格畸变,并且随着球磨时间的延长,球磨杂质会引入到Cu基体中,进一步导致硬度升高。64 h的样品综合性能较好,既实现了元素的均匀分布,又避免了过量Fe杂质的引入。Based on the principle of in-situ reaction,oxide dispersion strengthened copper(ODS-Cu)with Y_(2)O_(3) content of 3%was prepared by mechanical alloying(MA)and hot isostatic pressing(HIP).The evolution of microstructure and physical properties during mechanical alloying was investigated experimentally.Results show that Y_(2)O_(3) particles can be formed by the reaction of Y element and CuO in situ oxidant,and the content of Y_(2)O_(3) particles is not affected by the mechanical alloying process.In the early stage of mechanical alloying,the crushing of Y-rich particles,rolling of ball mill particles and cold welding play the main roles,which lead to the increase of the size of MA powders.At the late stage of mechanical alloying,solid solution elements dominated the lattice distortion,and with the extension of milling time,the impurities were introduced into the Cu matrix,which further led to the increase of hardness.The comprehensive performance of the 64-hour sample is better,which not only realizes the uniform distribution of elements but also avoids the introduction of excessive Fe impurities.

关 键 词：弥散强化 铜基复合材料 机械合金化 热等静压 球磨过程 

分 类 号：TB333[一般工业技术—材料科学与工程]