Stability of Strontium Zirconate Crucible for Induction Melting of Ti2Ni Alloys

被引：0

作者：

Chen G. ^{[1
,2
]}

Yu F. ^{[1
]}

Hou X. ^{[1
]}

Yang Y. ^{[1
]}

Xiao Y. ^{[1
]}

Zhang Y. ^{[1
]}

Zou X. ^{[1
]}

Hou X. ^{[1
]}

Lu X. ^{[1
,2
]}

Li C. ^{[1
,2
]}

机构：

[1] State Key Laboratory of Advanced Special Steel & Shanghai Key Laboratory of Advanced Ferrometallurgy, School of Materials Science and Engineering, Shanghai University, Shanghai

[2] Shanghai Special Casting Engineering Technology Research Center, Shanghai

[3] Collaborative Innovation Center of Steel Technology, University of Science and Technology Beijing, Beijing

来源：

Kuei Suan Jen Hsueh Pao/Journal of the Chinese Ceramic Society | 2021年 / 49卷 / 12期

关键词：

Induction melting; Interaction; Refractory; Titanium alloys; Zirconate strontium;

D O I：

10.14062/j.issn.0454-5648.20210284

中图分类号：

学科分类号：

摘要：

A strontium zirconate oxide refractory was prepared by a solid-state reaction method at a mole ratio n(SrO): n(ZrO2) of 2:1 and 1400℃, and Ti2Ni alloys were melted in a crucible at 1750℃. The phase composition and microstructure of the refractory as well as the key features of Ti2Ni alloy melt interacted with the refractory crucible were investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM) and optical microscopy (OM). The results reveal that the crucible refractory is consisted with the phases of Sr2ZrO4, Sr3Zr2O7 and SrO, respectively. The thermodynamically stable phase Sr2ZrO4 is unable to obtain separately due to the limitation of the reaction between SrCO3 and ZrO2, causing the residues of Sr3Zr2O7 and SrO. The thickness of interaction layer for the strontium zirconate oxide and barium zirconate crucible are 1250μm and 2120μm, respectively. The oxygen concentrations of the alloy after melting in strontium zirconate oxide and barium zirconate crucible are 0.332% and 0.566% (in mass fraction), respectively. It is indicated that the strontium zirconate oxide refractory exhibits a superior stability, compared to the barium zirconate refractory. © 2021, Editorial Department of Journal of the Chinese Ceramic Society. All right reserved.

引用

页码：2776 / 2782

页数：6

共 20 条

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