The effect of Ti addition on phase equilibria among Ni (A1), Ni 3Al (L12) and Ni3V (D022) phases

Eiki Hayashi; Satoru Kobayashi; Kazuhisa Sato; Toyohiko J. Konno; Yasuyuki Kaneno; Takayuki Takasugi

doi:10.4028/www.scientific.net/MSF.654-656.432

The effect of Ti addition on phase equilibria among Ni (A1), Ni ₃Al (L1₂) and Ni₃V (D0₂₂) phases

Eiki Hayashi, Satoru Kobayashi, Kazuhisa Sato, Toyohiko J. Konno, Yasuyuki Kaneno, Takayuki Takasugi

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2 Citations (Scopus)

Abstract

The effect of Ti addition on phase equilibria among Ni (A1), Ni ₃Al (L1₂) and Ni₃V (D0₂₂) phases at 950 °C was investigated through TEM/EDS analysis on heat-treated alloys. The three-phase coexisting region of A1 + L1₂ + D0₂₂ was found to exist around the composition of Ni-4Al-19V (at.%) in the Ni-Al-V ternary system. With addition of Ti to the ternary system the three-phase coexisting region was shifted to the Ni-rich side. Ti partitioned most into the L12 phase and least into the A1 phase. These results suggest that the addition of Ti stabilizes the L1₂ and D0₂₂ phases against A1 phase, and raises the temperature of eutectoid reaction in the Ni₃Al- Ni₃V pseudo-binary system: A1 → L1₂ + D0 ₂₂.

Original language	English
Title of host publication	PRICM7
Publisher	Trans Tech Publications Ltd
Pages	432-435
Number of pages	4
ISBN (Print)	0878492550, 9780878492558
DOIs	https://doi.org/10.4028/www.scientific.net/MSF.654-656.432
Publication status	Published - 2010
Event	7th Pacific Rim International Conference on Advanced Materials and Processing, PRICM-7 - Cairns, QLD, Australia Duration: 2010 Aug 2 → 2010 Aug 6

Publication series

Name	Materials Science Forum
Volume	654-656
ISSN (Print)	0255-5476
ISSN (Electronic)	1662-9752

Other

Other	7th Pacific Rim International Conference on Advanced Materials and Processing, PRICM-7
Country/Territory	Australia
City	Cairns, QLD
Period	10/8/2 → 10/8/6

Keywords

Alloying effect
Eutectoid reaction temperature
Intermetallic alloys
Phase stability

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Access to Document

10.4028/www.scientific.net/MSF.654-656.432

Cite this

Hayashi, E, Kobayashi, S, Sato, K, Konno, TJ, Kaneno, Y & Takasugi, T 2010, The effect of Ti addition on phase equilibria among Ni (A1), Ni ₃Al (L1₂) and Ni₃V (D0₂₂) phases. in PRICM7. Materials Science Forum, vol. 654-656, Trans Tech Publications Ltd, pp. 432-435, 7th Pacific Rim International Conference on Advanced Materials and Processing, PRICM-7, Cairns, QLD, Australia, 10/8/2. https://doi.org/10.4028/www.scientific.net/MSF.654-656.432

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abstract = "The effect of Ti addition on phase equilibria among Ni (A1), Ni 3Al (L12) and Ni3V (D022) phases at 950 °C was investigated through TEM/EDS analysis on heat-treated alloys. The three-phase coexisting region of A1 + L12 + D022 was found to exist around the composition of Ni-4Al-19V (at.%) in the Ni-Al-V ternary system. With addition of Ti to the ternary system the three-phase coexisting region was shifted to the Ni-rich side. Ti partitioned most into the L12 phase and least into the A1 phase. These results suggest that the addition of Ti stabilizes the L12 and D022 phases against A1 phase, and raises the temperature of eutectoid reaction in the Ni3Al- Ni3V pseudo-binary system: A1 → L12 + D0 22.",

keywords = "Alloying effect, Eutectoid reaction temperature, Intermetallic alloys, Phase stability",

author = "Eiki Hayashi and Satoru Kobayashi and Kazuhisa Sato and Konno, {Toyohiko J.} and Yasuyuki Kaneno and Takayuki Takasugi",

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AU - Hayashi, Eiki

AU - Kobayashi, Satoru

AU - Sato, Kazuhisa

AU - Konno, Toyohiko J.

AU - Kaneno, Yasuyuki

AU - Takasugi, Takayuki

PY - 2010

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N2 - The effect of Ti addition on phase equilibria among Ni (A1), Ni 3Al (L12) and Ni3V (D022) phases at 950 °C was investigated through TEM/EDS analysis on heat-treated alloys. The three-phase coexisting region of A1 + L12 + D022 was found to exist around the composition of Ni-4Al-19V (at.%) in the Ni-Al-V ternary system. With addition of Ti to the ternary system the three-phase coexisting region was shifted to the Ni-rich side. Ti partitioned most into the L12 phase and least into the A1 phase. These results suggest that the addition of Ti stabilizes the L12 and D022 phases against A1 phase, and raises the temperature of eutectoid reaction in the Ni3Al- Ni3V pseudo-binary system: A1 → L12 + D0 22.

AB - The effect of Ti addition on phase equilibria among Ni (A1), Ni 3Al (L12) and Ni3V (D022) phases at 950 °C was investigated through TEM/EDS analysis on heat-treated alloys. The three-phase coexisting region of A1 + L12 + D022 was found to exist around the composition of Ni-4Al-19V (at.%) in the Ni-Al-V ternary system. With addition of Ti to the ternary system the three-phase coexisting region was shifted to the Ni-rich side. Ti partitioned most into the L12 phase and least into the A1 phase. These results suggest that the addition of Ti stabilizes the L12 and D022 phases against A1 phase, and raises the temperature of eutectoid reaction in the Ni3Al- Ni3V pseudo-binary system: A1 → L12 + D0 22.

KW - Alloying effect

KW - Eutectoid reaction temperature

KW - Intermetallic alloys

KW - Phase stability

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