Ni元素对快速成型Fe合金缺陷与性能的影响  

Effect of Ni addition on defects and properties of rapid prototyping Fe-based alloys

作　　者：王刚 郭跃东 王微[2] 檀财旺 张光胜 WANG Gang;GUO Yuedong;WANG Wei;TAN Caiwang;ZHANG Guangsheng(School of Mechanical and Automotive Engineering,Anhui Polytechnic University,Wuhu 241000,China;Department of Mechanical Engineering,Anhui Technical College of Mechanical and Electrical Engineering,Wuhu 241002,China;School of Materials Science and Engineering,Harbin Institute of Technology,Weihai 264200,China)

机构地区：[1]安徽工程大学机械与汽车工程学院,安徽芜湖241000 [2]安徽机电职业技术学院机械工程系,安徽芜湖241002 [3]哈尔滨工业大学(威海)材料科学与工程学院,山东威海264200

出　　处：《兵器材料科学与工程》2019年第2期5-10,共6页Ordnance Material Science and Engineering

基　　金：国家自然科学基金(51704001);安徽省重点研究与开发计划项目(1704a0902056);安徽省高校自然科学重点项目(KJ2018A0860;KJ2018A0113)

摘　　要：通过球磨法向Fe基合金粉末中分别混入质量分数为5%、10%、15%的Ni粉,并采用激光快速成型法分别制备出尺寸为15 mm×10 mm×5 mm的Fe基合金样品。研究混入不同比例Ni粉的Fe基合金样品组织与性能的变化规律。结果表明:激光成型过程中,不同的样品内均发生严重晶化,并伴随裂纹和孔洞等缺陷,但随Ni含量的增加,Fe基合金样品中裂纹与孔洞逐渐减少;添加15%Ni粉的Fe基合金样品,裂纹和孔洞最少且耐腐蚀性能最好。Ni powders with 5%,10%,15%content were separately mixed into the Fe-based amorphous alloy powder by ball10 mm×5 mm were prepared by laser rapid prototyping.The microstructure and properties of Fe-based alloy samples mixed with different proportions of Ni powder were investigated.The results show that all of the samples have micro-crack,and crystallization occurs in the samples.However,the addition of 15%Ni powder can effectively reduce the crack and void formation in Fe-based alloy samples.Fe-based alloy samples with 15%Ni powder have the best corrosion-resistant performance.

关 键 词：FE基合金 Ni粉 激光快速成型 组织 腐蚀性能 

分 类 号：TG455[金属学及工艺—焊接]