TEM observations of grain refinement of laser surface melted γ-TiAl based alloy

G. Q. Wu; Z. Huang; Z. F. Li; Z. J. Ruan

doi:10.1016/S0167-577X(03)00183-6

TEM observations of grain refinement of laser surface melted γ-TiAl based alloy

G. Q. Wu^*
, Z. Huang
, Z. F. Li
, Z. J. Ruan

^*Corresponding author for this work

School of Materials Science and Engineering

Huazhong University of Science and Technology
Beihang University

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

10 Scopus citations

Abstract

Laser surface remelting followed by annealing treatment was carried out on γ-TiAl based alloy, and the phenomenon of grain size refinement was observed by transmission electron (TEM). The results show that after laser surface remelting and subsequent annealing treatment, a series of changes occur in the microstructure of γ-TiAl based alloy: L (liquid phase)→α₂ (dendritic structure)+γ→γ (equiaxed grain)+α₂ (small α₂ particles). Finally, an equiaxed, ultrafine, uniform and stable microstructure is formed.

Original language	English
Pages (from-to)	3810-3814
Number of pages	5
Journal	Materials Letters
Volume	57
Issue number	24-25
DOIs	https://doi.org/10.1016/S0167-577X(03)00183-6
State	Published - Aug 2003

Keywords

Heat treatment
Laser surface treatment
Microstructure
TEM
TiAl based alloy

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10.1016/S0167-577X(03)00183-6

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@article{fc0b1f5ebd554a51840336523bed3956,

title = "TEM observations of grain refinement of laser surface melted γ-TiAl based alloy",

abstract = "Laser surface remelting followed by annealing treatment was carried out on γ-TiAl based alloy, and the phenomenon of grain size refinement was observed by transmission electron (TEM). The results show that after laser surface remelting and subsequent annealing treatment, a series of changes occur in the microstructure of γ-TiAl based alloy: L (liquid phase)→α2 (dendritic structure)+γ→γ (equiaxed grain)+α2 (small α2 particles). Finally, an equiaxed, ultrafine, uniform and stable microstructure is formed.",

keywords = "Heat treatment, Laser surface treatment, Microstructure, TEM, TiAl based alloy",

author = "Wu, \{G. Q.\} and Z. Huang and Li, \{Z. F.\} and Ruan, \{Z. J.\}",

year = "2003",

month = aug,

doi = "10.1016/S0167-577X(03)00183-6",

language = "英语",

volume = "57",

pages = "3810--3814",

journal = "Materials Letters",

issn = "0167-577X",

publisher = "Elsevier B.V.",

number = "24-25",

}

TY - JOUR

T1 - TEM observations of grain refinement of laser surface melted γ-TiAl based alloy

AU - Wu, G. Q.

AU - Huang, Z.

AU - Li, Z. F.

AU - Ruan, Z. J.

PY - 2003/8

Y1 - 2003/8

N2 - Laser surface remelting followed by annealing treatment was carried out on γ-TiAl based alloy, and the phenomenon of grain size refinement was observed by transmission electron (TEM). The results show that after laser surface remelting and subsequent annealing treatment, a series of changes occur in the microstructure of γ-TiAl based alloy: L (liquid phase)→α2 (dendritic structure)+γ→γ (equiaxed grain)+α2 (small α2 particles). Finally, an equiaxed, ultrafine, uniform and stable microstructure is formed.

AB - Laser surface remelting followed by annealing treatment was carried out on γ-TiAl based alloy, and the phenomenon of grain size refinement was observed by transmission electron (TEM). The results show that after laser surface remelting and subsequent annealing treatment, a series of changes occur in the microstructure of γ-TiAl based alloy: L (liquid phase)→α2 (dendritic structure)+γ→γ (equiaxed grain)+α2 (small α2 particles). Finally, an equiaxed, ultrafine, uniform and stable microstructure is formed.

KW - Heat treatment

KW - Laser surface treatment

KW - Microstructure

KW - TEM

KW - TiAl based alloy

UR - https://www.scopus.com/pages/publications/0042160181

U2 - 10.1016/S0167-577X(03)00183-6

DO - 10.1016/S0167-577X(03)00183-6

M3 - 文章

AN - SCOPUS:0042160181

SN - 0167-577X

VL - 57

SP - 3810

EP - 3814

JO - Materials Letters

JF - Materials Letters

IS - 24-25

ER -

TEM observations of grain refinement of laser surface melted γ-TiAl based alloy

Abstract

Keywords

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