Deformability and microstructure transformation of pilot ingot of Ti-45Al-(8-9)Nb-(W,B,Y) alloy

X. J. Xu; J. P. Lin; Y. L. Wang; Z. Lin; G. L. Chen

doi:10.1016/j.msea.2005.09.110

Deformability and microstructure transformation of pilot ingot of Ti-45Al-(8-9)Nb-(W,B,Y) alloy

X. J. Xu^*
, J. P. Lin
, Y. L. Wang
, Z. Lin
, G. L. Chen

^*Corresponding author for this work

University of Science and Technology Beijing

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

43 Scopus citations

Abstract

Thermo-mechanical processing parameters of Ti-45Al-(8-9)Nb-(W,B,Y) alloy were investigated by hot simulation tests. From the results, pilot ingots were forged, and the microstructures of the ingots before and after forging were analyzed by optical microscopy and scanning electron microscopy (SEM). The results showed that the alloy exhibited good deformability and low deformation resistance at higher temperature and lower strain rate. Crack-free pancakes were obtained by jacketed forging up to 75% engineering strain for the pilot ingots with a height-to-diameter (H/D) ratio ranging from 1.10 to 2.13. The as-forged microstructure consisted of the refined duplex microstructure for the majority of the forged sample with partially recrystallized zone near the surface.

Original language	English
Pages (from-to)	98-103
Number of pages	6
Journal	Materials Science and Engineering: A
Volume	416
Issue number	1-2
DOIs	https://doi.org/10.1016/j.msea.2005.09.110
State	Published - 25 Jan 2006
Externally published	Yes

Keywords

Jacketed forging
Microstructure
TiAl
Workability

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10.1016/j.msea.2005.09.110

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title = "Deformability and microstructure transformation of pilot ingot of Ti-45Al-(8-9)Nb-(W,B,Y) alloy",

abstract = "Thermo-mechanical processing parameters of Ti-45Al-(8-9)Nb-(W,B,Y) alloy were investigated by hot simulation tests. From the results, pilot ingots were forged, and the microstructures of the ingots before and after forging were analyzed by optical microscopy and scanning electron microscopy (SEM). The results showed that the alloy exhibited good deformability and low deformation resistance at higher temperature and lower strain rate. Crack-free pancakes were obtained by jacketed forging up to 75\% engineering strain for the pilot ingots with a height-to-diameter (H/D) ratio ranging from 1.10 to 2.13. The as-forged microstructure consisted of the refined duplex microstructure for the majority of the forged sample with partially recrystallized zone near the surface.",

keywords = "Jacketed forging, Microstructure, TiAl, Workability",

author = "Xu, \{X. J.\} and Lin, \{J. P.\} and Wang, \{Y. L.\} and Z. Lin and Chen, \{G. L.\}",

year = "2006",

month = jan,

day = "25",

doi = "10.1016/j.msea.2005.09.110",

language = "英语",

volume = "416",

pages = "98--103",

journal = "Materials Science and Engineering: A",

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number = "1-2",

}

TY - JOUR

T1 - Deformability and microstructure transformation of pilot ingot of Ti-45Al-(8-9)Nb-(W,B,Y) alloy

AU - Xu, X. J.

AU - Lin, J. P.

AU - Wang, Y. L.

AU - Lin, Z.

AU - Chen, G. L.

PY - 2006/1/25

Y1 - 2006/1/25

N2 - Thermo-mechanical processing parameters of Ti-45Al-(8-9)Nb-(W,B,Y) alloy were investigated by hot simulation tests. From the results, pilot ingots were forged, and the microstructures of the ingots before and after forging were analyzed by optical microscopy and scanning electron microscopy (SEM). The results showed that the alloy exhibited good deformability and low deformation resistance at higher temperature and lower strain rate. Crack-free pancakes were obtained by jacketed forging up to 75% engineering strain for the pilot ingots with a height-to-diameter (H/D) ratio ranging from 1.10 to 2.13. The as-forged microstructure consisted of the refined duplex microstructure for the majority of the forged sample with partially recrystallized zone near the surface.

AB - Thermo-mechanical processing parameters of Ti-45Al-(8-9)Nb-(W,B,Y) alloy were investigated by hot simulation tests. From the results, pilot ingots were forged, and the microstructures of the ingots before and after forging were analyzed by optical microscopy and scanning electron microscopy (SEM). The results showed that the alloy exhibited good deformability and low deformation resistance at higher temperature and lower strain rate. Crack-free pancakes were obtained by jacketed forging up to 75% engineering strain for the pilot ingots with a height-to-diameter (H/D) ratio ranging from 1.10 to 2.13. The as-forged microstructure consisted of the refined duplex microstructure for the majority of the forged sample with partially recrystallized zone near the surface.

KW - Jacketed forging

KW - Microstructure

KW - TiAl

KW - Workability

UR - https://www.scopus.com/pages/publications/30844444150

U2 - 10.1016/j.msea.2005.09.110

DO - 10.1016/j.msea.2005.09.110

M3 - 文章

AN - SCOPUS:30844444150

SN - 0921-5093

VL - 416

SP - 98

EP - 103

JO - Materials Science and Engineering: A

JF - Materials Science and Engineering: A

IS - 1-2

ER -

Deformability and microstructure transformation of pilot ingot of Ti-45Al-(8-9)Nb-(W,B,Y) alloy

Abstract

Keywords

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