UNDERSTANDING THE OXIDE DISPERSION BEHAVIOR OF YTTRIA IN METAL MATRIX OFMA956 ALLOY THROUGH HIGH-ENERGY MILLING AND HOT PRESS SINTERING

Collection with item attached
2017
Item details URL
http://open-repository.kisti.re.kr/cube/handle/open_repository/486714.do
DOI
10.1515/amm-2017-0212
Title
UNDERSTANDING THE OXIDE DISPERSION BEHAVIOR OF YTTRIA IN METAL MATRIX OFMA956 ALLOY THROUGH HIGH-ENERGY MILLING AND HOT PRESS SINTERING
Description
This research was supported by the Regional Technology InnovationProgram (grant no. 100448458) of the Ministry of Trade, Industry, andEnergy (MOTIE), Republic of Korea.
abstract
MA956 (Fe-Cr-Al) alloy powder was high-energy ball milled with various amount of yttria contents (1,2,3, and 4 wt.%) to fabricate an oxide dispersion strengthened alloy. The milled powders were then consolidated using hot press sintering at 1150 degrees C. The surface morphology and crystal structure of MA956 powder during the high-energy milling depending on the yttria contents was investigated using particle size analysis, X-ray diffraction, and scanning electron microscopy. The microstructural analysis of sintered alloy was performed using transmission electron microscopy and energy dispersive spectroscopy to evaluate the dispersion behavior of yttrium oxide. The results showed that, as yttria contents increased, the oxide particles became finer and are uniformly distributed during the high-energy milling. However, after the sintering, the oxide particles were coarsened with more than 3 wt.% of yttria addition.
provenance
Made available in Cube on 2018-09-28T16:14:58Z (GMT). No. of bitstreams: 0
language
English
author
Swain, B.
Han, D.
Kim, G. -H.
Kong, M. -S.
Ahn, B.
accessioned
2018-09-28T16:14:58Z
available
2018-09-28T16:14:58Z
issued
2017
citation
ARCHIVES OF METALLURGY AND MATERIALS(62): 2
issn
1733-3490
uri
http://open-repository.kisti.re.kr/cube/handle/open_repository/486714.do
Funder
산업통상자원부
Funding Program
소재부품기술개발
Project ID
1415151502
Jurisdiction
Rep.of Korea
Project Name
Development of 980℃ grade superalloys strengthened by multi-component nano-oxides for commercialization of core materials in the field of the defense industry
rights
openAccess
subject
ODS
mechanical alloying
high-energy milling
oxide particledistribution
type
article


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