粉体および粉末冶金
Online ISSN : 1880-9014
Print ISSN : 0532-8799
ISSN-L : 0532-8799
水噴霧ステンレス鋼粉の粉末特性に及ぼすNiおよびCr成分の影響
加藤 哲男草加 勝司
著者情報
ジャーナル オープンアクセス

1976 年 23 巻 7 号 p. 217-223

詳細
抄録
The objective of the present work was mainly to study the pressing and sintering behavior of water atomized 17/25% Cr stainless steel powders containing Ni less than 20%.
The results were summarized as follows.
(1) Compressibility of powders got higher in proportion to an increase of Ni and a decrease of Cr, almost independently of phase constitution of particles.
(2) Compressibility was not improved by heat-decomposing a metastable (Delta-)ferrite which had been obtained during water-quenching, except the case where the α single-phase powder was annealed below 900°C.
(3) Green strength of compacts tended to be higher in an α-rich duplex phase range, mainly due to the roughness of surface of particles.
(4) Sinterability was appreciably affected by phase constitution of particles and in particular, proved to be higher in the α-rich duplex phase state in the case of Ni-varied 25%Cr steel powders.
著者関連情報
© 社団法人粉体粉末冶金協会

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