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Titolo:
The effects of addition of deoxidation elements on the morphology of (Mn,Cr)S inclusions in stainless steel
Autore:
Oikawa, K; Sumi, SI; Ishida, K;
Indirizzi:
Tohoku Natl Ind Res Inst, Mat Engn Div, Sendai, Miyagi 9838551, Japan Tohoku Natl Ind Res Inst Sendai Miyagi Japan 9838551 iyagi 9838551, Japan Tohoku Univ, Grad Sch Engn, Dept Mat Sci, Sendai, Miyagi 9808579, Japan Tohoku Univ Sendai Miyagi Japan 9808579 ci, Sendai, Miyagi 9808579, Japan
Titolo Testata:
JOURNAL OF PHASE EQUILIBRIA
fascicolo: 3, volume: 20, anno: 1999,
pagine: 215 - 223
SICI:
1054-9714(199906)20:3<215:TEOAOD>2.0.ZU;2-D
Fonte:
ISI
Lingua:
ENG
Soggetto:
THERMODYNAMIC EVALUATION; MNS INCLUSIONS; SOLIDIFICATION; SYSTEM;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
21
Recensione:
Indirizzi per estratti:
Indirizzo: Oikawa, K Tohoku Natl Ind Res Inst, Mat Engn Div, Sendai, Miyagi 9838551, Japan Tohoku Natl Ind Res Inst Sendai Miyagi Japan 9838551 551, Japan
Citazione:
K. Oikawa et al., "The effects of addition of deoxidation elements on the morphology of (Mn,Cr)S inclusions in stainless steel", J PH EQUIL, 20(3), 1999, pp. 215-223

Abstract

The effects of additions of C, Si, Ti, and Al on the morphology of (Mn,Cr)S inclusions in Fe-15Cr-1Mn-0.3S (mass%) and Fe-15Cr-0.5Mn-0.3S base alloyshave been investigated using optical and scanning electron microscopy, Three types of (Mn,Cr)S inclusions morphology have been observed (1) globular-shaped sulfide, (2) rodlike (Mn,Cr)S, and (3) angular (Mn,Cr)S, depending on the Mn content and the presence of additional elements. The formation mechanisms of (Mn,Cr)S inclusions are discussed on the basis of phase diagram information. It is shown that (a) the globular (Mn,Cr)S inclusions observedin 1% Mn alloys are formed through the metastable monotectic reaction, (b)the rodlike (Mn,Cr)S observed on the addition of Ti and Al are the products of a stable eutectic reaction that proceeds by nucleation of(Mn,Cr)S crystals by the high-melting-point particles such as TiN and Al2O3, (c) the globular (Mn,Cr)S morphology observed in 0.5% Mn base alloys is the result of a stable monotectic reaction that proceeds through the formation of the low-melting globular (Mn,Cr)S inclusions, and (d) the addition of C and Si promote the stable eutectic reaction by lowering the melting point of Fe-rich solid solution.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/11/20 alle ore 18:48:56