Novel casting TiAl alloy with fine microstructure and excellent performance assisted by ultrasonic melt treatment

Zheng Deshuang; Chen Ruirun; Wang Jian; Ma Tengfei; Ding Hongsheng; Su Yanqing; Guo Jingjie; Fu Hengzhi

doi:10.1016/j.matlet.2017.04.102

Novel casting TiAl alloy with fine microstructure and excellent performance assisted by ultrasonic melt treatment

Zheng Deshuang^*
, Chen Ruirun
, Wang Jian
, Ma Tengfei
, Ding Hongsheng
, Su Yanqing
, Guo Jingjie
, Fu Hengzhi

^*Corresponding author for this work

Harbin Institute of Technology
Taiyuan Iron and Steel (Group) Company Ltd.

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

23 Scopus citations

Abstract

A novel casting TiAl alloy with fine homogeneous microstructure and excellent performances is obtained assisted by the ultrasonic melt treatment. The coarse columnar crystal is modified into non-dendritic structure and the large grain is refined from 3098 μm to 88 μm; the micro-segregation, micro-porosities and precipitates are eliminated as well. After ultrasonic melt treatment for 90 s, the highest compressive strength is improved up to 1705 MPa, about 12% higher than the “quasi-oriented” TiAl alloy.

Original language	English
Pages (from-to)	67-70
Number of pages	4
Journal	Materials Letters
Volume	200
DOIs	https://doi.org/10.1016/j.matlet.2017.04.102
State	Published - 1 Aug 2017
Externally published	Yes

Keywords

Cast
Mechanical performance
Microstructure
TiAl alloy
Ultrasonic melt treatment

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10.1016/j.matlet.2017.04.102

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title = "Novel casting TiAl alloy with fine microstructure and excellent performance assisted by ultrasonic melt treatment",

abstract = "A novel casting TiAl alloy with fine homogeneous microstructure and excellent performances is obtained assisted by the ultrasonic melt treatment. The coarse columnar crystal is modified into non-dendritic structure and the large grain is refined from 3098 μm to 88 μm; the micro-segregation, micro-porosities and precipitates are eliminated as well. After ultrasonic melt treatment for 90 s, the highest compressive strength is improved up to 1705 MPa, about 12\% higher than the “quasi-oriented” TiAl alloy.",

keywords = "Cast, Mechanical performance, Microstructure, TiAl alloy, Ultrasonic melt treatment",

author = "Zheng Deshuang and Chen Ruirun and Wang Jian and Ma Tengfei and Ding Hongsheng and Su Yanqing and Guo Jingjie and Fu Hengzhi",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier B.V.",

year = "2017",

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day = "1",

doi = "10.1016/j.matlet.2017.04.102",

language = "英语",

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pages = "67--70",

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TY - JOUR

T1 - Novel casting TiAl alloy with fine microstructure and excellent performance assisted by ultrasonic melt treatment

AU - Deshuang, Zheng

AU - Ruirun, Chen

AU - Jian, Wang

AU - Tengfei, Ma

AU - Hongsheng, Ding

AU - Yanqing, Su

AU - Jingjie, Guo

AU - Hengzhi, Fu

PY - 2017/8/1

Y1 - 2017/8/1

N2 - A novel casting TiAl alloy with fine homogeneous microstructure and excellent performances is obtained assisted by the ultrasonic melt treatment. The coarse columnar crystal is modified into non-dendritic structure and the large grain is refined from 3098 μm to 88 μm; the micro-segregation, micro-porosities and precipitates are eliminated as well. After ultrasonic melt treatment for 90 s, the highest compressive strength is improved up to 1705 MPa, about 12% higher than the “quasi-oriented” TiAl alloy.

AB - A novel casting TiAl alloy with fine homogeneous microstructure and excellent performances is obtained assisted by the ultrasonic melt treatment. The coarse columnar crystal is modified into non-dendritic structure and the large grain is refined from 3098 μm to 88 μm; the micro-segregation, micro-porosities and precipitates are eliminated as well. After ultrasonic melt treatment for 90 s, the highest compressive strength is improved up to 1705 MPa, about 12% higher than the “quasi-oriented” TiAl alloy.

KW - Cast

KW - Mechanical performance

KW - Microstructure

KW - TiAl alloy

KW - Ultrasonic melt treatment

UR - https://www.scopus.com/pages/publications/85018776149

U2 - 10.1016/j.matlet.2017.04.102

DO - 10.1016/j.matlet.2017.04.102

M3 - 文章

AN - SCOPUS:85018776149

SN - 0167-577X

VL - 200

SP - 67

EP - 70

JO - Materials Letters

JF - Materials Letters

ER -

Novel casting TiAl alloy with fine microstructure and excellent performance assisted by ultrasonic melt treatment

Abstract

Keywords

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