Densification behavior of high Nb containing TiAl alloys through reactive hot pressing

Yanhang Wang; Junpin Lin; Yuehui He; Yanli Wang; Guoliang Chen

doi:10.1016/S1005-8850(07)60048-6

Densification behavior of high Nb containing TiAl alloys through reactive hot pressing

Yanhang Wang
, Junpin Lin^*
, Yuehui He
, Yanli Wang
, Guoliang Chen

^*Corresponding author for this work

University of Science and Technology Beijing
Central South University

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

5 Scopus citations

Abstract

Densification behavior of high Nb containing TiAl alloys through reactive hot pressing was investigated. The results showed that the density of the sample hot pressed at 1400°C could reach a near full density of 98.37%. However, the densification abnormality was observed at 1500°C. The diffusion of elemental Nb during microstructural evolution is an important aspect affecting densification, which will form pore nests. With the increase of hot pressing temperature, the diffusion of Nb becomes more adequate. HIP (Hot isostatic pressing) treatment can only decrease porosity to some extent, but cannot eliminate it completely.

Original language	English
Pages (from-to)	251-255
Number of pages	5
Journal	Journal of University of Science and Technology Beijing: Mineral Metallurgy Materials (Eng Ed)
Volume	14
Issue number	3
DOIs	https://doi.org/10.1016/S1005-8850(07)60048-6
State	Published - Jun 2007
Externally published	Yes

Keywords

TiAl based alloy
densification
hot pressing
powder metallurgy

Access to Document

10.1016/S1005-8850(07)60048-6

Cite this

@article{4037a6466bd5438494b7dd19f4b5ff18,

title = "Densification behavior of high Nb containing TiAl alloys through reactive hot pressing",

abstract = "Densification behavior of high Nb containing TiAl alloys through reactive hot pressing was investigated. The results showed that the density of the sample hot pressed at 1400°C could reach a near full density of 98.37\%. However, the densification abnormality was observed at 1500°C. The diffusion of elemental Nb during microstructural evolution is an important aspect affecting densification, which will form pore nests. With the increase of hot pressing temperature, the diffusion of Nb becomes more adequate. HIP (Hot isostatic pressing) treatment can only decrease porosity to some extent, but cannot eliminate it completely.",

keywords = "TiAl based alloy, densification, hot pressing, powder metallurgy",

author = "Yanhang Wang and Junpin Lin and Yuehui He and Yanli Wang and Guoliang Chen",

year = "2007",

month = jun,

doi = "10.1016/S1005-8850(07)60048-6",

language = "英语",

volume = "14",

pages = "251--255",

journal = "Journal of University of Science and Technology Beijing: Mineral Metallurgy Materials (Eng Ed)",

issn = "1005-8850",

publisher = "University of Science and Technology Beijing",

number = "3",

}

TY - JOUR

T1 - Densification behavior of high Nb containing TiAl alloys through reactive hot pressing

AU - Wang, Yanhang

AU - Lin, Junpin

AU - He, Yuehui

AU - Wang, Yanli

AU - Chen, Guoliang

PY - 2007/6

Y1 - 2007/6

N2 - Densification behavior of high Nb containing TiAl alloys through reactive hot pressing was investigated. The results showed that the density of the sample hot pressed at 1400°C could reach a near full density of 98.37%. However, the densification abnormality was observed at 1500°C. The diffusion of elemental Nb during microstructural evolution is an important aspect affecting densification, which will form pore nests. With the increase of hot pressing temperature, the diffusion of Nb becomes more adequate. HIP (Hot isostatic pressing) treatment can only decrease porosity to some extent, but cannot eliminate it completely.

AB - Densification behavior of high Nb containing TiAl alloys through reactive hot pressing was investigated. The results showed that the density of the sample hot pressed at 1400°C could reach a near full density of 98.37%. However, the densification abnormality was observed at 1500°C. The diffusion of elemental Nb during microstructural evolution is an important aspect affecting densification, which will form pore nests. With the increase of hot pressing temperature, the diffusion of Nb becomes more adequate. HIP (Hot isostatic pressing) treatment can only decrease porosity to some extent, but cannot eliminate it completely.

KW - TiAl based alloy

KW - densification

KW - hot pressing

KW - powder metallurgy

UR - https://www.scopus.com/pages/publications/34250691522

U2 - 10.1016/S1005-8850(07)60048-6

DO - 10.1016/S1005-8850(07)60048-6

M3 - 文章

AN - SCOPUS:34250691522

SN - 1005-8850

VL - 14

SP - 251

EP - 255

JO - Journal of University of Science and Technology Beijing: Mineral Metallurgy Materials (Eng Ed)

JF - Journal of University of Science and Technology Beijing: Mineral Metallurgy Materials (Eng Ed)

IS - 3

ER -

Densification behavior of high Nb containing TiAl alloys through reactive hot pressing

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this