Interface characteristics and wear resistance of Ni-B_(4)C plated ZTA reinforced high chromium cast iron composite  

作　　者：Ke-liang Li Wei Li Yan-liang Yi 

机构地区：[1]Institute of Advanced Wear&Corrosion Resistant and Functional Materials,Jinan University,Guangzhou 510632,China [2]National Joint Engineering Research Center of High Performance Metal Wear Resistant Materials Technology,Jinan University,Guangzhou 510632,China

出　　处：《China Foundry》2023年第3期253-262,共10页中国铸造（英文版）

基　　金：financially supported by the National Natural Science Foundation of China(52005217);the University Research Platform and Research Projects of Guangdong Education Department(2022ZDZX3003);Basic and Applied Basic Research Fund Project of Guangdong Province in China(2022A1515010091,2021A1515010523,and 2020A1515110020);Basic Scientific Research Projects of Central Universities(No.21620344);Jinan University Open Fund for Advanced Materials(JNIWRM2021004)。

摘　　要：A chemical composite plating of Ni-B_(4)C was used to prepare the surface-modified zirconia toughened alumina(ZTA)ceramic particles.The ceramic preforms were prepared by the plated ZTA and sodium silicate solution binder,followed by casting infiltration to prepare the ZTA particles reinforced high chromium cast iron(HCCI)composites.The result reveals that a distinct interface layer forms at the ZTA/HCCI interface,which consists of phases of ZrB_(2),FeB,Fe_(2)B,and NaSiO_(4).The interfacial wettability between ZTA and HCCI is improved by the diffusion and reaction of Ni and B_(4)C.The wear test reveals that the Ni-B_(4)C plated ZTA particles can effectively improve the wear resistance of the ZTA/HCCI composite,and the wear rate of the composite is decreased to 11.6%of HCCI.

关 键 词：ZTA COMPOSITE high chromium cast iron interface layer three-body abrasive wear 

分 类 号：TG143[一般工业技术—材料科学与工程]