|제목(국문)||다중압출공정을 이용한 Cu-Ni-Zr-Ti 비정질 복합재의 미세조직제어|
|제목(영문)||Microstructure Control of Cu-Ni-Zr-Ti Metallic Glass Composites by Multi-Pass Extrusion Process|
(T. S. Kim
이진규 (J. K. Lee ,한국생산기술연구원 ) ▷공저자네트워크등록하기
|초록||In order to, simultaneously, synthesize and control the size of microstructure of amorphous/crystalline composites, a repeated extrusion process was performed using the gas atomized Cu54Ni6Zr22Ti18 metallic glass powders and the crystalline brasses. The size of microstructure in the resultant composites was varied depending on the pass of extrusion
as well as on the area reduction ratio. The microstructure could be estimated using an equation of rn=rn-1/R1/2, where R is reduction ratio and rn is the resultant radius of the extruded bar after n pass. Theory of microstructural refinement as well as the relationship between the resultant microstructures and mechanical properties was discussed.
|keyword||Extrusion, Microstructure Control, Amorphous, Powder Metallurgy, Mechanical Property|