Sintering of a Bi-Material of Two-Component Powder Injection Molded Stainless Steel(17-4PH)and Yttria Stabilized Zirconia(3YSZ)
The two-component powder injection molding(2C-PIM)is a very attractive net shaping process for production of metal-ceramic composites in mass production.These are difficult to accomplish by adopting traditional metal casting process or conventional materials.In this study,the feedstock of stainless steel(17-4PH)with solid loading of 68vol%and zirconia(3YSZ)with 50vol%were formulated by mixing each with the palm stearin(PS)/low density polyethylene(LDPE)binder system in the ratio of 60%to 40%.The two feedstocks were processed in sequence using a screw type injection molding machine to produce a green bi-material component.The processing conditions for de-binding and sintering were developed to produce the bi-material.The densities of sintered components were established using Archimedes method.The density of the bi-materials is increased with temperature up to 97%of theoretical density and higher than the average density of the individual parts.The x-ray diffraction patterns reveal cubic structure of chromium iron nickel(Ni-Cr-Fe)and the tetragonal phase structure of zirconium yttrium oxide.The EDS shows good bonding and indicates inter-diffusion of alloying elements(Fe,Ni,Zr,Cr)across the interface.In conclusion,bi-material of two-component powder injection molding are successfully fabricated.
2Co-Powder Injection Molding De-binding Sintering Density Bonding
Bonaventure Emeka Ukwueze Sulong Abu Bakar Muhammad Norhamidi Sajuri Zainuddin
Department Mechanical and Materials Engineering,Faculty of Engineering and Built Environment,Univers Department Mechanical and Materials Engineering,Faculty of Engineering and Built Environment,Univers
国际会议
北京
英文
632-636
2018-09-16（万方平台首次上网日期，不代表论文的发表时间）