Interaction Between Two Ni-base Alloys and Ceramic Moulds

摘要：

　　The interfacial reactions between ceramic moulds and DZ417G and DZ125 superalloys were investigated.The microstructure and composition of the interface region were observed by optical microscope,X-ray diffraction and scanning electron microscope with energy dispersive spectroscopy.The results showed that (Al1-xCrx)2O3 solid solution phase with pink color was formed from the dissolution of Cr2O3 and Al2O3 and vapour phase,which was transferred to the reaction surfaces.The reaction layer thicknesses of DZ417G and DZ125 alloys were about in the range of 40-50μm.The interface reaction product between DZ417G alloy and ceramic mould was TiO2 and the product between DZ125 alloy and ceramic mould was HfO2.

关键词： DZ417G superalloy DZ125 superalloy Ceramic moulds Interface reaction

作者: Jiansheng Yao Dingzhong Tang Xiaoguang Liu Chengbo Xiao Xin Li Chunxiao Cao

作者单位: Science and Technology on Advanced High Temperature Structural Materials Laboratory, Beijing Institute of Aeronautical Materials, Beijing 100095, China

会议类型: 国际会议

会议名称: the Chinese Materials Congress 2012(2012年中国材料大会(CMC2012))

会议地点: 太原

会议语种:英文

页码: 765-771

在线出版日期: 2012-07-13（万方平台首次上网日期，不代表论文的发表时间）