THE INFLUENCE OF SPEED RATE ON MICROSTRUCTURE OF FUNCTIONALLY GRADED COMPONENTS OBTAINED BY THE INCREMENTAL MELTING AND SOLIDIFICATION PROCESS
The bulk Functionally Graded Materials (FGMs) is becoming an interestingfield of research.The use of the Incremental Melting and Solidification Process(IMSP) in order to produce FGMs seems to have the potential to be used toproduce high performance components. In this process a controlled liquid bath is maintained at the top of thecomponent where new materials arc added changing the componentscomposition.Thus,a functionally graded material is obtained with a varyingcomposition along one direction of the component. This paper deals with the influence of the speed displacement rates betweenheating coil and mould on the microstructure of different Cu-Ag alloys.Hardness and phase distribution,along the main castings axis,were assessed.Interface formation and its characteristics were also analysed.Results demonstrate that the speed rate has an influence on chemicalcomposition gradation and phase distribution along the component.Mechanicalproperties,as obtained by hardness measurements and tensile tests results arerelated to the chemical composition gradation and phase evolution.
incremental melting solidification process (IMSP) Cu-Ag alloys functionally graded materials (FGM) metallurgical characterization
L.Mazare M.Georgina D.Soares F.S.Silva
Mechanical Engineering Department,School of Engineering,Minho University,Portugal
国际会议
第二届国际非均质材料力学会议(The Second International Conference on Heterogeneous Material Mechanics)
安徽黄山
英文
537
2008-06-03（万方平台首次上网日期，不代表论文的发表时间）