Effect of melting rate on the Ti-Riched segregation in NbTi alloy ingot

Baoquan Fu; Pingxiang Zhang; Jinshan Li; Kai Fan; Yongjian Zheng; Yongsheng He; Yi Zhang; Xianghong Liu; Yong Feng

Effect of melting rate on the Ti-Riched segregation in NbTi alloy ingot

Baoquan Fu, Pingxiang Zhang, Jinshan Li, Kai Fan, Yongjian Zheng, Yongsheng He, Yi Zhang, Xianghong Liu, Yong Feng

School of Materials Sience and Engineering

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

Abstract

The melting rate can influence the content of Ti at the solid/liquid interface according to the classic solidification theory; then, the Ti-riched segregation has been researched in the NbTi alloy ingots prepared at different melting rates. The results indicate that the Ti-riched segregation in grain boundary is restrained by decreasing the melting rate. It is advantageous to improve the macro- and micro-elements homogeneity for NbTi ingot. The Φ 520 mm NbTi ingot, whose surface and homogeneity are very good, is fabricated at 9 kg/min melting rate and it reaches the standard of WahChang of U.S. Finally, the appropriate melting rate of fabricating NbTi alloy ingot is obtained for engineering application.

Original language	English
Pages (from-to)	3143-3148
Number of pages	6
Journal	Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
Volume	43
Issue number	12
State	Published - 1 Dec 2014

Keywords

Black spot
Melting rate
NbTi
Tree ring

Cite this

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title = "Effect of melting rate on the Ti-Riched segregation in NbTi alloy ingot",

abstract = "The melting rate can influence the content of Ti at the solid/liquid interface according to the classic solidification theory; then, the Ti-riched segregation has been researched in the NbTi alloy ingots prepared at different melting rates. The results indicate that the Ti-riched segregation in grain boundary is restrained by decreasing the melting rate. It is advantageous to improve the macro- and micro-elements homogeneity for NbTi ingot. The Φ 520 mm NbTi ingot, whose surface and homogeneity are very good, is fabricated at 9 kg/min melting rate and it reaches the standard of WahChang of U.S. Finally, the appropriate melting rate of fabricating NbTi alloy ingot is obtained for engineering application.",

keywords = "Black spot, Melting rate, NbTi, Tree ring",

author = "Baoquan Fu and Pingxiang Zhang and Jinshan Li and Kai Fan and Yongjian Zheng and Yongsheng He and Yi Zhang and Xianghong Liu and Yong Feng",

year = "2014",

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TY - JOUR

T1 - Effect of melting rate on the Ti-Riched segregation in NbTi alloy ingot

AU - Fu, Baoquan

AU - Zhang, Pingxiang

AU - Li, Jinshan

AU - Fan, Kai

AU - Zheng, Yongjian

AU - He, Yongsheng

AU - Zhang, Yi

AU - Liu, Xianghong

AU - Feng, Yong

PY - 2014/12/1

Y1 - 2014/12/1

N2 - The melting rate can influence the content of Ti at the solid/liquid interface according to the classic solidification theory; then, the Ti-riched segregation has been researched in the NbTi alloy ingots prepared at different melting rates. The results indicate that the Ti-riched segregation in grain boundary is restrained by decreasing the melting rate. It is advantageous to improve the macro- and micro-elements homogeneity for NbTi ingot. The Φ 520 mm NbTi ingot, whose surface and homogeneity are very good, is fabricated at 9 kg/min melting rate and it reaches the standard of WahChang of U.S. Finally, the appropriate melting rate of fabricating NbTi alloy ingot is obtained for engineering application.

AB - The melting rate can influence the content of Ti at the solid/liquid interface according to the classic solidification theory; then, the Ti-riched segregation has been researched in the NbTi alloy ingots prepared at different melting rates. The results indicate that the Ti-riched segregation in grain boundary is restrained by decreasing the melting rate. It is advantageous to improve the macro- and micro-elements homogeneity for NbTi ingot. The Φ 520 mm NbTi ingot, whose surface and homogeneity are very good, is fabricated at 9 kg/min melting rate and it reaches the standard of WahChang of U.S. Finally, the appropriate melting rate of fabricating NbTi alloy ingot is obtained for engineering application.

KW - Black spot

KW - Melting rate

KW - NbTi

KW - Tree ring

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M3 - 文章

AN - SCOPUS:84920896802

SN - 1002-185X

VL - 43

SP - 3143

EP - 3148

JO - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering

JF - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering

IS - 12

ER -

Effect of melting rate on the Ti-Riched segregation in NbTi alloy ingot

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Keywords

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