Microstructural Analysis of Sintered Gradient Materials Based on Distaloy SE Powder

Archives of Metallurgy and Materials

M. Nykiel¹  K. Zarębski¹ 

[1] Cracow University of Technology, Institute of Mate rials Engineering, Facult y of Mechanical Engineering, 24 Wa rszawska Str., 31-155 Kraków, Poland

关键词: Keywords: functionally graded materials (FGM);    powder metallurgy (PM);    low-alloy steels;   

DOI  :  10.1515/amm-2016-0104

学科分类：金属与冶金

来源: Akademia Gorniczo-Hutnicza im. Stanislawa Staszica / University of Mining and Metallurgy

【 摘 要 】

The study describes the microstructural analysis of cylindrically-shaped functionally graded products sintered from iron powder with scheduled graded structure on the cross-section running from the core to the surface layer of the sinter. Different types of structure were produced using Distaloy SE powder in two compositions - one without the addition of carbon, and another with 0.6wt% C. Two methods were used to fill the die cavity and shape the products. The first method involving a two-step compaction of individual layers. The second method using an original technique of die filling enabled the formation of transition zone between the outer layer and the core still at the stage of product shaping. As part of microstructural analysis, structural constituents were identified and voids morphology was examined. Studies covered the effect of the type of the applied method on properties of the graded zone obtained in the manufactured products

【 授权许可】

Unknown