Microstructure and mechanical properties of as-cast Ti-45Al-8.5Nb-(W,B,Y) alloy with industrial scale

Y. H. Wang; J. P. Lin; Y. H. He; Y. L. Wang; G. L. Chen

doi:10.1016/j.msea.2007.02.108

Microstructure and mechanical properties of as-cast Ti-45Al-8.5Nb-(W,B,Y) alloy with industrial scale

Y. H. Wang
, J. P. Lin^*
, Y. H. He
, Y. L. Wang
, G. L. Chen

^*Corresponding author for this work

University of Science and Technology Beijing
Central South University

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

54 Scopus citations

Abstract

Ti-45Al-8.5Nb-(W,B,Y) alloy with industrial scale was fabricated successfully using plasma arc furnace. Microstructure and compression properties of the alloy were investigated. The results showed that a uniform fully lamellar (FL) microstructure was observed in the center and the rim of the different parts for the ingot after heat treatment. There are three microsegregations in the FL microstructure, i.e. β (B2) phase, borides and yttrium oxide. The alloy exhibits excellent compression properties at elevated temperatures. When compression temperature is higher than 1100 °C, high quality compressed samples without cracks can be obtained even engineering compression strain up to 80% for the strain rates of 1 × 10^-1 to 10^-3 S^-1.

Original language	English
Pages (from-to)	82-87
Number of pages	6
Journal	Materials Science and Engineering: A
Volume	471
Issue number	1-2
DOIs	https://doi.org/10.1016/j.msea.2007.02.108
State	Published - 15 Dec 2007
Externally published	Yes

Keywords

Compression properties
Microsegregations
Microstructure
TiAl based alloy

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10.1016/j.msea.2007.02.108

Cite this

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title = "Microstructure and mechanical properties of as-cast Ti-45Al-8.5Nb-(W,B,Y) alloy with industrial scale",

abstract = "Ti-45Al-8.5Nb-(W,B,Y) alloy with industrial scale was fabricated successfully using plasma arc furnace. Microstructure and compression properties of the alloy were investigated. The results showed that a uniform fully lamellar (FL) microstructure was observed in the center and the rim of the different parts for the ingot after heat treatment. There are three microsegregations in the FL microstructure, i.e. β (B2) phase, borides and yttrium oxide. The alloy exhibits excellent compression properties at elevated temperatures. When compression temperature is higher than 1100 °C, high quality compressed samples without cracks can be obtained even engineering compression strain up to 80\% for the strain rates of 1 × 10-1 to 10-3 S-1.",

keywords = "Compression properties, Microsegregations, Microstructure, TiAl based alloy",

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year = "2007",

month = dec,

day = "15",

doi = "10.1016/j.msea.2007.02.108",

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journal = "Materials Science and Engineering: A",

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TY - JOUR

T1 - Microstructure and mechanical properties of as-cast Ti-45Al-8.5Nb-(W,B,Y) alloy with industrial scale

AU - Wang, Y. H.

AU - Lin, J. P.

AU - He, Y. H.

AU - Wang, Y. L.

AU - Chen, G. L.

PY - 2007/12/15

Y1 - 2007/12/15

N2 - Ti-45Al-8.5Nb-(W,B,Y) alloy with industrial scale was fabricated successfully using plasma arc furnace. Microstructure and compression properties of the alloy were investigated. The results showed that a uniform fully lamellar (FL) microstructure was observed in the center and the rim of the different parts for the ingot after heat treatment. There are three microsegregations in the FL microstructure, i.e. β (B2) phase, borides and yttrium oxide. The alloy exhibits excellent compression properties at elevated temperatures. When compression temperature is higher than 1100 °C, high quality compressed samples without cracks can be obtained even engineering compression strain up to 80% for the strain rates of 1 × 10-1 to 10-3 S-1.

AB - Ti-45Al-8.5Nb-(W,B,Y) alloy with industrial scale was fabricated successfully using plasma arc furnace. Microstructure and compression properties of the alloy were investigated. The results showed that a uniform fully lamellar (FL) microstructure was observed in the center and the rim of the different parts for the ingot after heat treatment. There are three microsegregations in the FL microstructure, i.e. β (B2) phase, borides and yttrium oxide. The alloy exhibits excellent compression properties at elevated temperatures. When compression temperature is higher than 1100 °C, high quality compressed samples without cracks can be obtained even engineering compression strain up to 80% for the strain rates of 1 × 10-1 to 10-3 S-1.

KW - Compression properties

KW - Microsegregations

KW - Microstructure

KW - TiAl based alloy

UR - https://www.scopus.com/pages/publications/34548260407

U2 - 10.1016/j.msea.2007.02.108

DO - 10.1016/j.msea.2007.02.108

M3 - 文章

AN - SCOPUS:34548260407

SN - 0921-5093

VL - 471

SP - 82

EP - 87

JO - Materials Science and Engineering: A

JF - Materials Science and Engineering: A

IS - 1-2

ER -

Microstructure and mechanical properties of as-cast Ti-45Al-8.5Nb-(W,B,Y) alloy with industrial scale

Abstract

Keywords

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