Flow cessation mechanism of β-phase solidification of high-nb tial alloy - Details

Author：

Gong, Ziqi (Gong, Ziqi.) | Wu, Jin (Wu, Jin.) | Du, Huiqi (Du, Huiqi.) | Chai, Lihua (Chai, Lihua.) | Chen, Ziyong (Chen, Ziyong.)

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EI Scopus

Abstract：

The　spiral　fluidity　sample　was　poured　by　the　liquid　of　Ti-45Al-8Nb-0.2W-0.25Cr　alloy.　The　flow　cessation　mechanism　of　TiAl　based　alloys　was　investigated,　and　its　model　was　built　through　the　observation　on　the　macrostructure　of　TiAl　based　alloys　formed　in　the　channel.　The　results　showed　that　the　morphology　and　size　of　the　columnar　crystal　and　equiaxial　crystal　changed　a　lot　with　the　increase　of　flow　length.　The　flow　cessation　mechanism　of　the　alloy　is　the　abundant　growth　of　columnar　crystal　in　the　root,　which　causes　to　form　the　structure　and　finally　give　rise　to　the　＇necking＇　leading　to　flow　cessation.　©　2021　Trans　Tech　Publications　Ltd,　Switzerland.

Keyword：

Binary alloys Crystal structure Morphology Aluminum alloys Tungsten alloys Chromium alloys Niobium alloys Titanium alloys

Author Community：

[ 1 ] [Gong, Ziqi]School of Mechanical Engineering, Tianjin Sino-German University of Applied Sciences, Tianjin; 300350, China
[ 2 ] [Wu, Jin]School of Mechanical Engineering, Tianjin Sino-German University of Applied Sciences, Tianjin; 300350, China
[ 3 ] [Du, Huiqi]School of Mechanical Engineering, Tianjin Sino-German University of Applied Sciences, Tianjin; 300350, China
[ 4 ] [Chai, Lihua]School of Mechanical Engineering, Tianjin Sino-German University of Applied Sciences, Tianjin; 300350, China
[ 5 ] [Chen, Ziyong]College of Materials Science and Engineering, Beijing University of Technology, Beijing; 100124, China

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Source ：

ISSN： 0255-5476

Year： 2021

Volume： 1035 MSF

Page： 125-133

Language： English

Cited Count：

WoS CC Cited Count： 0

SCOPUS Cited Count：

ESI Highly Cited Papers on the List： 0 Unfold All

WanFang Cited Count：

Chinese Cited Count：

30 Days PV： 9

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