In:
Journal of Materials Research, Springer Science and Business Media LLC, Vol. 14, No. 6 ( 1999-06), p. 2430-2435
Abstract:
X-ray diffraction and microstructural studies were carried out on 2 : 17 type Sm–Co alloys containing Fe, Cu, and Zr (13–14 at.% Sm, 57–60 at.% Co, 20–22 at.% Fe, 4 at.% Cu, and 3 at.% Zr) in as-cast and heat-treated conditions. Microstructural studies revealed that the as-cast alloys contain three phases. It was observed that the samples subjected to sintering at 1463 K for 45 min followed by a solution treatment at 1448 K for 1 h resulted in nearly a single-phase, rhombohedral crystal structure (Th 2 Zn 17 -type). Subsequent isothermal aging at 1123 K and ramp-cooling to 673 K resulted in a mixture of Sm 2 Co 17 - and SmCo 5 -type phases with the former as major phase. It was also found that samples (Sm 〉 13 at.%) sintered at temperatures 〉 1463 K showed incipient melting and multiphase formation.
Type of Medium:
Online Resource
ISSN:
0884-2914
,
2044-5326
DOI:
10.1557/JMR.1999.0326
Language:
English
Publisher:
Springer Science and Business Media LLC
Publication Date:
1999
detail.hit.zdb_id:
54876-5
detail.hit.zdb_id:
2015297-8
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