利用等离子堆焊技术在304L钢板表面制备了添加Nb粉的Ni40合金堆焊层,并对堆焊层的微观组织、显微硬度和耐磨性进行研究.结果表明,堆焊层组织主要由γ-Ni树枝晶、枝晶间的共晶组织、弥散分布的NbC颗粒、硼化物和碳化物等相组成.由于增强相NbC颗粒在堆焊层中均匀分布,使Nb/Ni40复合合金堆焊层与纯Ni40合金堆焊层相比,显微硬度提高约40％(平均达到448 HV0.3),耐磨性也提高约37.5％.
参考文献
| [1] | K. Gurumoorthy;M. Kamaraj;K. Prasad Rao .Microstructural aspects of plasma transferred arc surfaced Ni-based hardfacing alloy[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2007(1/2):11-19. |
| [2] | Sudha C;Shankar P;Rao RS;Thirumurugesan R;Vijayalakshmi M;Raj B .Microchemical and microstructural studies in a PTA weld overlay of Ni-Cr-Si-B alloy on AISI 304L stainless steel[J].Surface & Coatings Technology,2008(10):2103-2112. |
| [3] | 邓德伟,葛言柳,田鑫,孟艳玲.等离子堆焊球形碳化钨颗粒增强镍基合金堆焊层的组织与性能[J].金属热处理,2012(11):64-68. |
| [4] | 向永华,徐滨士,吕耀辉,姜祎,夏丹,刘存龙.等离子熔覆快速成形铁基合金的设计及其组织和性能评价[J].中国表面工程,2010(04):39-43. |
| [5] | 董丽虹,徐滨士,朱胜,杜则裕.等离子弧堆焊镍基复合粉末涂层材料[J].焊接学报,2005(01):37-40. |
| [6] | 傅卫,王惜宝,陈国喜.镍基WC等离子弧熔敷层的组织和高温磨损性能[J].焊接学报,2009(05):65-68. |
| [7] | Yang S;Liu W;Zhong M et al.TiC reinforced composite coating produced by powder feeding laser cladding[J].Materials Letters,2004,58(24):2958-2962. |
| [8] | Xiaolei Wu .In situ formation by laser cladding of a TiC composite coating with a gradient distribution[J].Surface & Coatings Technology,1999(2/3):111-115. |
| [9] | Zhou, SF;Huang, YJ;Zeng, XY .A study of Ni-based WC composite coatings by laser induction hybrid rapid cladding with elliptical spot[J].Applied Surface Science,2008(10):3110-3119. |
| [10] | 李怀学,张元彬,任登义.Nb,Ti,V共存时的过渡系数[J].焊接,2002(10):26-28. |
| [11] | 张元彬,史耀武.铌在堆焊金属中的应用[J].材料导报,2006(z1):408-409,412. |
| [12] | 杜竞楠,董刚,邓琦林,姚建华.激光熔覆NbC/Ni60合金复合涂层的组织与性能[J].应用激光,2012(04):277-281. |
| [13] | 谢颂京,董刚.激光熔覆原位生成NbC/Ni45合金涂层组织与性能的研究[J].应用激光,2012(06):459-463. |
| [14] | 牛薪,晁明举,王文丽,袁斌,梁二军.原位生成NbC颗粒增强镍基激光熔覆层[J].中国激光,2006(07):987-992. |
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