The influence of cooling rate and alloy composition on the formation of borides during solidification of boron-containing TiAl alloys

Chao Yang; Dawei Hu; Xinhua Wu; Aijun Huang; Mark Dixon

The influence of cooling rate and alloy composition on the formation of borides during solidification of boron-containing TiAl alloys

Chao Yang, Dawei Hu, Xinhua Wu, Aijun Huang, Mark Dixon

Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Research › peer-review

Abstract

Transmission electron microscopy (TEM) and electron backseattered diffraction (EBSD) have been used to identify the crystal structures of long curvy and blocky borides which are formed at different cooling rates in TiAl based alloys. It has been found that for Ti 45A1 2Nb 2Mn 1 B the long curvy borides were either TiB borides with B_f structure or Ti ₃B₄ borides,and the blocky borides were either TiB borides with B27 struc ture or TiP^ borides. However,for Ti 48A1 2Cr 2Nb IB both long curvy borides and blocky borides were found to be TiB₂borides. It is inferred that the crystal structures of borides are both composition and cooling rate related.

Original language	English
Title of host publication	Ti 2011 - Proceedings of the 12th World Conference on Titanium
Publisher	Science Press
Pages	1416-1420
Number of pages	5
Volume	2
ISBN (Print)	9787030338952
Publication status	Published - 2012
Externally published	Yes
Event	The World Conference on Titanium 2011 - China National Convention Center, Beijing, China Duration: 19 Jun 2011 → 24 Jun 2011 Conference number: 12th https://books.google.com.au/books/about/Ti_2011_Proceedings_of_the_12th_World_Co.html?id=NrJwMwEACAAJ&redir_esc=y

Conference

Conference	The World Conference on Titanium 2011
Abbreviated title	Ti 2011
Country	China
City	Beijing
Period	19/06/11 → 24/06/11
Internet address	https://books.google.com.au/books/about/Ti_2011_Proceedings_of_the_12th_World_Co.html?id=NrJwMwEACAAJ&redir_esc=y

Keywords

Borides
Com position
Cooling rate
Crystal structures
Tial alloys

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Link to publication in Scopus

Cite this

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title = "The influence of cooling rate and alloy composition on the formation of borides during solidification of boron-containing TiAl alloys",

abstract = "Transmission electron microscopy (TEM) and electron backseattered diffraction (EBSD) have been used to identify the crystal structures of long curvy and blocky borides which are formed at different cooling rates in TiAl based alloys. It has been found that for Ti 45A1 2Nb 2Mn 1 B the long curvy borides were either TiB borides with Bf structure or Ti 3B4 borides,and the blocky borides were either TiB borides with B27 struc ture or TiP^ borides. However,for Ti 48A1 2Cr 2Nb IB both long curvy borides and blocky borides were found to be TiB2borides. It is inferred that the crystal structures of borides are both composition and cooling rate related.",

keywords = "Borides, Com position, Cooling rate, Crystal structures, Tial alloys",

author = "Chao Yang and Dawei Hu and Xinhua Wu and Aijun Huang and Mark Dixon",

year = "2012",

language = "English",

isbn = "9787030338952",

volume = "2",

pages = "1416--1420",

booktitle = "Ti 2011 - Proceedings of the 12th World Conference on Titanium",

publisher = "Science Press",

address = "China",

note = "The World Conference on Titanium 2011, Ti 2011 ; Conference date: 19-06-2011 Through 24-06-2011",

url = "https://books.google.com.au/books/about/Ti_2011_Proceedings_of_the_12th_World_Co.html?id=NrJwMwEACAAJ&redir_esc=y",

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The influence of cooling rate and alloy composition on the formation of borides during solidification of boron-containing TiAl alloys. / Yang, Chao; Hu, Dawei; Wu, Xinhua ; Huang, Aijun; Dixon, Mark.

Ti 2011 - Proceedings of the 12th World Conference on Titanium. Vol. 2 Science Press, 2012. p. 1416-1420.

Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Research › peer-review

TY - GEN

T1 - The influence of cooling rate and alloy composition on the formation of borides during solidification of boron-containing TiAl alloys

AU - Yang, Chao

AU - Hu, Dawei

AU - Wu, Xinhua

AU - Huang, Aijun

AU - Dixon, Mark

N1 - Conference code: 12th

PY - 2012

Y1 - 2012

N2 - Transmission electron microscopy (TEM) and electron backseattered diffraction (EBSD) have been used to identify the crystal structures of long curvy and blocky borides which are formed at different cooling rates in TiAl based alloys. It has been found that for Ti 45A1 2Nb 2Mn 1 B the long curvy borides were either TiB borides with Bf structure or Ti 3B4 borides,and the blocky borides were either TiB borides with B27 struc ture or TiP^ borides. However,for Ti 48A1 2Cr 2Nb IB both long curvy borides and blocky borides were found to be TiB2borides. It is inferred that the crystal structures of borides are both composition and cooling rate related.

AB - Transmission electron microscopy (TEM) and electron backseattered diffraction (EBSD) have been used to identify the crystal structures of long curvy and blocky borides which are formed at different cooling rates in TiAl based alloys. It has been found that for Ti 45A1 2Nb 2Mn 1 B the long curvy borides were either TiB borides with Bf structure or Ti 3B4 borides,and the blocky borides were either TiB borides with B27 struc ture or TiP^ borides. However,for Ti 48A1 2Cr 2Nb IB both long curvy borides and blocky borides were found to be TiB2borides. It is inferred that the crystal structures of borides are both composition and cooling rate related.

KW - Borides

KW - Com position

KW - Cooling rate

KW - Crystal structures

KW - Tial alloys

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SN - 9787030338952

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BT - Ti 2011 - Proceedings of the 12th World Conference on Titanium

PB - Science Press

T2 - The World Conference on Titanium 2011

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