The effect of Ti addition on phase equilibria among Ni (Al), Ni 3Al (L12) and Ni3v (D022) phases

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

doi:10.2355/tetsutohagane.96.386

The effect of Ti addition on phase equilibria among Ni (Al), Ni ₃Al (L1₂) and Ni₃v (D0₂₂) phases

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

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

The effect of Ti addition on phase equilibria among Ni (Al), Ni ₃Al (L1₂) and Ni₃V (D0₂₂) phases at 950°C was investigated by means of TEM/EDS analysis on heat-treated alloys. The three-phase coexisting region of Al +L1₂+D0₂₂ was found to exist around the composition of Ni-4A1-19V (at.%) in the Ni-Al-V ternary system. By addition of Ti into 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 Al phase. These results suggest that the addition of Ti stabilizes the L1₂ phase against D0₂₂ and Al phases.

Original language	English
Pages (from-to)	386-391
Number of pages	6
Journal	Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
Volume	96
Issue number	6
DOIs	https://doi.org/10.2355/tetsutohagane.96.386
Publication status	Published - 2010

Keywords

Alloying effect
Eutectoid reaction temperature
Intermetallic alloys
Phase stability

ASJC Scopus subject areas

Condensed Matter Physics
Physical and Theoretical Chemistry
Metals and Alloys
Materials Chemistry

Access to Document

10.2355/tetsutohagane.96.386

Cite this

@article{77534467d4dc4d768013d60c51ae4102,

title = "The effect of Ti addition on phase equilibria among Ni (Al), Ni 3Al (L12) and Ni3v (D022) phases",

abstract = "The effect of Ti addition on phase equilibria among Ni (Al), Ni 3Al (L12) and Ni3V (D022) phases at 950°C was investigated by means of TEM/EDS analysis on heat-treated alloys. The three-phase coexisting region of Al +L12+D022 was found to exist around the composition of Ni-4A1-19V (at.%) in the Ni-Al-V ternary system. By addition of Ti into 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 Al phase. These results suggest that the addition of Ti stabilizes the L12 phase against D022 and Al phases.",

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",

year = "2010",

doi = "10.2355/tetsutohagane.96.386",

language = "English",

volume = "96",

pages = "386--391",

journal = "Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan",

issn = "0021-1575",

publisher = "Iron and Steel Institute of Japan",

number = "6",

}

TY - JOUR

T1 - The effect of Ti addition on phase equilibria among Ni (Al), Ni 3Al (L12) and Ni3v (D022) phases

AU - Hayashi, Eiki

AU - Kobayashi, Satoru

AU - Sato, Kazuhisa

AU - Konno, Toyohiko J.

AU - Kaneno, Yasuyuki

AU - Takasugi, Takayuki

PY - 2010

Y1 - 2010

N2 - The effect of Ti addition on phase equilibria among Ni (Al), Ni 3Al (L12) and Ni3V (D022) phases at 950°C was investigated by means of TEM/EDS analysis on heat-treated alloys. The three-phase coexisting region of Al +L12+D022 was found to exist around the composition of Ni-4A1-19V (at.%) in the Ni-Al-V ternary system. By addition of Ti into 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 Al phase. These results suggest that the addition of Ti stabilizes the L12 phase against D022 and Al phases.

AB - The effect of Ti addition on phase equilibria among Ni (Al), Ni 3Al (L12) and Ni3V (D022) phases at 950°C was investigated by means of TEM/EDS analysis on heat-treated alloys. The three-phase coexisting region of Al +L12+D022 was found to exist around the composition of Ni-4A1-19V (at.%) in the Ni-Al-V ternary system. By addition of Ti into 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 Al phase. These results suggest that the addition of Ti stabilizes the L12 phase against D022 and Al phases.

KW - Alloying effect

KW - Eutectoid reaction temperature

KW - Intermetallic alloys

KW - Phase stability

UR - http://www.scopus.com/inward/record.url?scp=77955586667&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77955586667&partnerID=8YFLogxK

U2 - 10.2355/tetsutohagane.96.386

DO - 10.2355/tetsutohagane.96.386

M3 - Article

AN - SCOPUS:77955586667

SN - 0021-1575

VL - 96

SP - 386

EP - 391

JO - Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan

JF - Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan

IS - 6

ER -