采用新型铁-碳-铬-钒-钛系药芯焊丝和埋弧焊方法制备出含有初生M7C3相的堆焊层,借助光学显微镜、扫描电镜和X射线衍射仪等研究了堆焊层的显微组织及碳化物的分布、形貌,并对其进行了磨粒磨损试验.结果表明:堆焊层的显微组织由马氏体+铁素体+残余奥氏体+M7C3+M3C+VC等组成,当碳含量为1.45%和2.05%时,尺寸为10～25 μm的初生M7C3相数量较多;初生M7C3相的数量和尺寸对堆焊层耐磨性能影响显著,其磨损机制以磨粒的显微切削为主.

所属栏目

新材料 新工艺湖南省科技攻关计划资助项目(2006GK3087);湘潭大学科研启动基金资助项目(06QDZ05)

收稿日期

2009/10/252010/6/10

作者单位

龚建勋:湘潭大学机械工程学院, 湘潭 411105
李丹:湘潭大学机械工程学院, 湘潭 411105
肖逸锋:湘潭大学机械工程学院, 湘潭 411105

备注

龚建勋(1973-),男,湖北崇阳人,副教授,博士.

引用该论文:

GONG Jian-xun,LI Dan,XIAO Yi-feng.Microstructure and Wear Resistance of Fe-C-Cr-V-Ti Flux-Cored Wire Surfacing Layers[J].Materials for mechancial engineering,2010,34(11):42～45
龚建勋,李丹,肖逸锋.铁-碳-铬-钒-钛系药芯焊丝堆焊层的显微组织及耐磨性能[J].机械工程材料,2010,34(11):42～45

被引情况:

【1】

龚建勋,许继青,路德斌,吴慧剑, "TiC颗粒对铁-碳-铬-硅合金堆焊层显微组织及耐磨性的影响",机械工程材料 39, 43-47(2015)

【2】

山红伟, "铌含量对铁-铬-碳系合金碳弧堆焊层组织和耐磨性能的影响",机械工程材料 40, 35-38(2016)
参考文献

【1】

陈华辉,邢建东,李卫.耐磨材料应用手册[M].北京:机械工业出版社,2006.

【2】

ZUMELZ E,GOYOS I,CABEZAS C,et al.Wear and corrosion behaviour of high-chromium (14-30%Cr) cast iron alloys[J].Journal of Materials Processing Technology,2002,128(1/3):250-255.

【3】

FAN C,CHEN Ming-che,CHANG Chia-ming,et al.Microstructure change caused by (Cr,Fe)23C6 carbides in high chromium Fe-Cr-C hardfacing alloys[J].Surface & Coatings Technology,2006,201(3):908-912.

【4】

BUYTOZ S,MUSTAFA M,YILDIRIM,et al.Microstructural and microhardness characteristics of gas tungsten arc synthesized Fe-Cr-C coating on AISI 4340[J].Materials Letters,2005,59(6):607-614.

【5】

LEE S,CHOO S H,BAEK E R,et al.Correlation of microstructure and fracture toughness in high-chromium white iron hardfacing alloys[J].Metallurgical and Materials Transactions A,1996,27(12):1996-3881.

【6】

CHATTERJEE S,PAL T K.Weld procedural effect on the performance of iron based hardfacing deposits on cast iron substrate[J].Journal of Materials Processing Technology,2006,173(1):61-69.

【7】

KIM C K,LEE S,JUNG J Y,et al.Effects of complex carbide fraction on high-temperature wear properties of hardfacing alloys reinforced with complex carbides[J].Materials Science and Engineering A,2003,349(1):1-11.

【8】

BRANAGAN D J,MARSHALL M C,MEACHAM B E.High toughness high hardness iron based PTAW weld materials[J].Materials Science and Engineering A,2006,428(1):116-123.

【9】

DOGAN N,HAWK J A,TYLCZAK J H.Wear of cast chromium steels with TiC reinforcement[J].Wear,2001,250(12):462-469.