Microstructure and phase analysis of Zirconia-ODS (Oxide Dispersion Strengthen) alloy sintered by APS with milling time variation

International Conference and Exhibition in Advanced Materials and Microscopy 2017

材料科学;物理学

Sugeng, Bambang^1 ; Bandriyana, B.^1 ; Salam, Rohmad^1 ; Sumariyo, S.^1 ; Sujatno, Agus^1 ; Dimyati, Arbi^1

Center for Science and Technology for Advanced Materials, PSTBM, Batan, Indonesia^1

关键词: Arc plasma;    Elemental compositions;    Milling time;    Oxide dispersions;    Phase analysis;    Process condition;    Sintering process;    Static compression;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/343/1/012035/pdf
DOI  :  10.1088/1757-899X/343/1/012035

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Investigation on the relationship between the process conditions of milling time and the microstructure on the synthesis of the zirconia-ODS steel alloy has been performed. The elemental composition of the alloy was determined on 20 wt% Cr and zirconia dispersoid of 0.50 wt%. The synthesis was carried out by powder metallurgy method with milling time of 3, 5 and 7 hours, static compression of 20 Ton and sintering process for 4 minutes using the APS (Arc Plasma Sintering) equipment. SEM-EDX and XRD test was carried out to characterize the phase and morphology of the alloy and the effect to the mechanical properties was evaluated by the Vickers Hardness testing. The synthesis produced sample of ODS steel with good dense and very little porous with the Fe-Cr phase that clearly observed in the XRD peak pattern. In addition milling time increased the homogeneously of Fe-Cr phase formulation, enhanced the grain refinement of the structure and increase the hardness of the alloy.