Changes in phase stability on Ti-10 aT.%Mo alloy by alloying elements

T. N. Rohmannudin, J. Syarif, Mohd. Zaidi Omar, Zainuddin Sajuri, A. R. Daud

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The objective of this study is to investigate the effect of alloying elements on phase stability in Ti-10at.%Mo alloy. Theoretical calculations such as Bo-Md calculation and Calphad using JMatPro software have been applied to predict phase stability of Ti-10at.%Mo alloy owing to third alloying elements at elevated and ambient temperature. In this study, powder metallurgy, sintering, and solution treatment are applied for fabrication of sample. It is found that α' or α" phases slightly exist within ß matrix in the Ti-10at.%Mo alloy after sintering at 1573K for 14.4ks and solution treatment at 1373K for 3.6ks. It is also found that addition of alloying elements such as Fe, Cr and Sn can stabilise the ß phase in ambient temperature after fabrication by the same process. XRD-peaks of the α' or α" phases are decreased owing to the addition of those alloying elements for 5at%. Moreover, the addition of 10at% of Fe, Cr and Sn could retard formation of α' or α" phases. However, the alloying elements have significant difference on stabilisation of the ß phase. The addition of 10at% Cr can promote full ß phase. On the other hand, addition of Sn and Fe still reveal α' or α" phase. Thus, it is thought that the addition of the alloying elements is effective for stabilise the ß phase in ambient temperature and the addition of 10at% Cr is the minimal requirement to obtain full ß phase in Ti10at.%Mo alloy.

Original languageEnglish
Pages (from-to)172-175
Number of pages4
JournalInternational Journal of Mechanical and Materials Engineering
Volume4
Issue number2
Publication statusPublished - 2009

Fingerprint

Phase stability
Alloying elements
Sintering
Fabrication
Powder metallurgy
Temperature
Stabilization

Keywords

  • ß phase
  • α or α" phases
  • Alloying elements
  • Phase stability
  • Powder metallurgy
  • Ti-10at.%Mo alloys

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials
  • Materials Science(all)

Cite this

Changes in phase stability on Ti-10 aT.%Mo alloy by alloying elements. / Rohmannudin, T. N.; Syarif, J.; Omar, Mohd. Zaidi; Sajuri, Zainuddin; Daud, A. R.

In: International Journal of Mechanical and Materials Engineering, Vol. 4, No. 2, 2009, p. 172-175.

Research output: Contribution to journalArticle

@article{30ea74c2a1e34045a5688ef7e5285bf4,
title = "Changes in phase stability on Ti-10 aT.{\%}Mo alloy by alloying elements",
abstract = "The objective of this study is to investigate the effect of alloying elements on phase stability in Ti-10at.{\%}Mo alloy. Theoretical calculations such as Bo-Md calculation and Calphad using JMatPro software have been applied to predict phase stability of Ti-10at.{\%}Mo alloy owing to third alloying elements at elevated and ambient temperature. In this study, powder metallurgy, sintering, and solution treatment are applied for fabrication of sample. It is found that α' or α{"} phases slightly exist within {\ss} matrix in the Ti-10at.{\%}Mo alloy after sintering at 1573K for 14.4ks and solution treatment at 1373K for 3.6ks. It is also found that addition of alloying elements such as Fe, Cr and Sn can stabilise the {\ss} phase in ambient temperature after fabrication by the same process. XRD-peaks of the α' or α{"} phases are decreased owing to the addition of those alloying elements for 5at{\%}. Moreover, the addition of 10at{\%} of Fe, Cr and Sn could retard formation of α' or α{"} phases. However, the alloying elements have significant difference on stabilisation of the {\ss} phase. The addition of 10at{\%} Cr can promote full {\ss} phase. On the other hand, addition of Sn and Fe still reveal α' or α{"} phase. Thus, it is thought that the addition of the alloying elements is effective for stabilise the {\ss} phase in ambient temperature and the addition of 10at{\%} Cr is the minimal requirement to obtain full {\ss} phase in Ti10at.{\%}Mo alloy.",
keywords = "{\ss} phase, α or α{"} phases, Alloying elements, Phase stability, Powder metallurgy, Ti-10at.{\%}Mo alloys",
author = "Rohmannudin, {T. N.} and J. Syarif and Omar, {Mohd. Zaidi} and Zainuddin Sajuri and Daud, {A. R.}",
year = "2009",
language = "English",
volume = "4",
pages = "172--175",
journal = "International Journal of Mechanical and Materials Engineering",
issn = "1823-0334",
publisher = "University of Malaya",
number = "2",

}

TY - JOUR

T1 - Changes in phase stability on Ti-10 aT.%Mo alloy by alloying elements

AU - Rohmannudin, T. N.

AU - Syarif, J.

AU - Omar, Mohd. Zaidi

AU - Sajuri, Zainuddin

AU - Daud, A. R.

PY - 2009

Y1 - 2009

N2 - The objective of this study is to investigate the effect of alloying elements on phase stability in Ti-10at.%Mo alloy. Theoretical calculations such as Bo-Md calculation and Calphad using JMatPro software have been applied to predict phase stability of Ti-10at.%Mo alloy owing to third alloying elements at elevated and ambient temperature. In this study, powder metallurgy, sintering, and solution treatment are applied for fabrication of sample. It is found that α' or α" phases slightly exist within ß matrix in the Ti-10at.%Mo alloy after sintering at 1573K for 14.4ks and solution treatment at 1373K for 3.6ks. It is also found that addition of alloying elements such as Fe, Cr and Sn can stabilise the ß phase in ambient temperature after fabrication by the same process. XRD-peaks of the α' or α" phases are decreased owing to the addition of those alloying elements for 5at%. Moreover, the addition of 10at% of Fe, Cr and Sn could retard formation of α' or α" phases. However, the alloying elements have significant difference on stabilisation of the ß phase. The addition of 10at% Cr can promote full ß phase. On the other hand, addition of Sn and Fe still reveal α' or α" phase. Thus, it is thought that the addition of the alloying elements is effective for stabilise the ß phase in ambient temperature and the addition of 10at% Cr is the minimal requirement to obtain full ß phase in Ti10at.%Mo alloy.

AB - The objective of this study is to investigate the effect of alloying elements on phase stability in Ti-10at.%Mo alloy. Theoretical calculations such as Bo-Md calculation and Calphad using JMatPro software have been applied to predict phase stability of Ti-10at.%Mo alloy owing to third alloying elements at elevated and ambient temperature. In this study, powder metallurgy, sintering, and solution treatment are applied for fabrication of sample. It is found that α' or α" phases slightly exist within ß matrix in the Ti-10at.%Mo alloy after sintering at 1573K for 14.4ks and solution treatment at 1373K for 3.6ks. It is also found that addition of alloying elements such as Fe, Cr and Sn can stabilise the ß phase in ambient temperature after fabrication by the same process. XRD-peaks of the α' or α" phases are decreased owing to the addition of those alloying elements for 5at%. Moreover, the addition of 10at% of Fe, Cr and Sn could retard formation of α' or α" phases. However, the alloying elements have significant difference on stabilisation of the ß phase. The addition of 10at% Cr can promote full ß phase. On the other hand, addition of Sn and Fe still reveal α' or α" phase. Thus, it is thought that the addition of the alloying elements is effective for stabilise the ß phase in ambient temperature and the addition of 10at% Cr is the minimal requirement to obtain full ß phase in Ti10at.%Mo alloy.

KW - ß phase

KW - α or α" phases

KW - Alloying elements

KW - Phase stability

KW - Powder metallurgy

KW - Ti-10at.%Mo alloys

UR - http://www.scopus.com/inward/record.url?scp=73149109078&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=73149109078&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:73149109078

VL - 4

SP - 172

EP - 175

JO - International Journal of Mechanical and Materials Engineering

JF - International Journal of Mechanical and Materials Engineering

SN - 1823-0334

IS - 2

ER -