A high-Nb TiAl alloy with highly refined microstructure and excellent mechanical properties fabricated by electromagnetic continuous casting

Yong Zhe Wang; Hong Sheng Ding; Rui Run Chen; Jing Jie Guo; Heng Zhi Fu; Jin Peng Lü

doi:10.1007/s41230-016-5107-2

A high-Nb TiAl alloy with highly refined microstructure and excellent mechanical properties fabricated by electromagnetic continuous casting

Yong Zhe Wang^*
, Hong Sheng Ding
, Rui Run Chen
, Jing Jie Guo
, Heng Zhi Fu
, Jin Peng Lü

^*Corresponding author for this work

Harbin Institute of Technology

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

4 Scopus citations

Abstract

In the present research,microstructure refinement of a high-Nb TiAl alloy (Ti-48Al-8Nb-0.15B) was realized by means of the electromagnetic continuous casting (EMCC) technique. The microstructure of an ingot obtained by EMCC was analyzed using scanning electron microscopy (SEM). As compared with the raw as-cast alloy,the obtained EMCC alloy presented a much finer microstructure with lamellar colonies with a mean size of about 50-70 μm because the electromagnetic stirring broke initial dendrites and enhanced the heterogeneous nucleation. As the grains were refined,the properties of the TiAl alloy were improved significantly. This implies that the EMCC technique could offer the possibility of application for high-Nb TiAl alloys with a refined microstructure and excellent properties to be used as a structural material.

Original language	English
Pages (from-to)	342-345
Number of pages	4
Journal	China Foundry
Volume	13
Issue number	5
DOIs	https://doi.org/10.1007/s41230-016-5107-2
State	Published - Sep 2016
Externally published	Yes

Keywords

Electromagnetic continuous casting
High-Nb TiAl alloy
Mechanical properties
Microstructure

Access to Document

10.1007/s41230-016-5107-2

Cite this

@article{74081de9e8fd4881bbd839fa86218754,

title = "A high-Nb TiAl alloy with highly refined microstructure and excellent mechanical properties fabricated by electromagnetic continuous casting",

abstract = "In the present research,microstructure refinement of a high-Nb TiAl alloy (Ti-48Al-8Nb-0.15B) was realized by means of the electromagnetic continuous casting (EMCC) technique. The microstructure of an ingot obtained by EMCC was analyzed using scanning electron microscopy (SEM). As compared with the raw as-cast alloy,the obtained EMCC alloy presented a much finer microstructure with lamellar colonies with a mean size of about 50-70 μm because the electromagnetic stirring broke initial dendrites and enhanced the heterogeneous nucleation. As the grains were refined,the properties of the TiAl alloy were improved significantly. This implies that the EMCC technique could offer the possibility of application for high-Nb TiAl alloys with a refined microstructure and excellent properties to be used as a structural material.",

keywords = "Electromagnetic continuous casting, High-Nb TiAl alloy, Mechanical properties, Microstructure",

author = "Wang, \{Yong Zhe\} and Ding, \{Hong Sheng\} and Chen, \{Rui Run\} and Guo, \{Jing Jie\} and Fu, \{Heng Zhi\} and L{\"u}, \{Jin Peng\}",

year = "2016",

month = sep,

doi = "10.1007/s41230-016-5107-2",

language = "英语",

volume = "13",

pages = "342--345",

journal = "China Foundry",

issn = "1672-6421",

publisher = "Springer Nature",

number = "5",

}

TY - JOUR

T1 - A high-Nb TiAl alloy with highly refined microstructure and excellent mechanical properties fabricated by electromagnetic continuous casting

AU - Wang, Yong Zhe

AU - Ding, Hong Sheng

AU - Chen, Rui Run

AU - Guo, Jing Jie

AU - Fu, Heng Zhi

AU - Lü, Jin Peng

PY - 2016/9

Y1 - 2016/9

N2 - In the present research,microstructure refinement of a high-Nb TiAl alloy (Ti-48Al-8Nb-0.15B) was realized by means of the electromagnetic continuous casting (EMCC) technique. The microstructure of an ingot obtained by EMCC was analyzed using scanning electron microscopy (SEM). As compared with the raw as-cast alloy,the obtained EMCC alloy presented a much finer microstructure with lamellar colonies with a mean size of about 50-70 μm because the electromagnetic stirring broke initial dendrites and enhanced the heterogeneous nucleation. As the grains were refined,the properties of the TiAl alloy were improved significantly. This implies that the EMCC technique could offer the possibility of application for high-Nb TiAl alloys with a refined microstructure and excellent properties to be used as a structural material.

AB - In the present research,microstructure refinement of a high-Nb TiAl alloy (Ti-48Al-8Nb-0.15B) was realized by means of the electromagnetic continuous casting (EMCC) technique. The microstructure of an ingot obtained by EMCC was analyzed using scanning electron microscopy (SEM). As compared with the raw as-cast alloy,the obtained EMCC alloy presented a much finer microstructure with lamellar colonies with a mean size of about 50-70 μm because the electromagnetic stirring broke initial dendrites and enhanced the heterogeneous nucleation. As the grains were refined,the properties of the TiAl alloy were improved significantly. This implies that the EMCC technique could offer the possibility of application for high-Nb TiAl alloys with a refined microstructure and excellent properties to be used as a structural material.

KW - Electromagnetic continuous casting

KW - High-Nb TiAl alloy

KW - Mechanical properties

KW - Microstructure

UR - https://www.scopus.com/pages/publications/84992378724

U2 - 10.1007/s41230-016-5107-2

DO - 10.1007/s41230-016-5107-2

M3 - 文章

AN - SCOPUS:84992378724

SN - 1672-6421

VL - 13

SP - 342

EP - 345

JO - China Foundry

JF - China Foundry

IS - 5

ER -

A high-Nb TiAl alloy with highly refined microstructure and excellent mechanical properties fabricated by electromagnetic continuous casting

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this