Experimental and thermodynamic assessment of the Gd-Ti-Zr phase diagram

被引：4

作者：

Mattern, N. ^{[1
]}

Han, J. H. ^{[1
]}

Nowak, R. ^{[2
]}

Fabrichnaya, O. ^{[3
]}

Kaban, I ^{[1
]}

Shuleshova, O. ^{[1
]}

Sobczak, N. ^{[2
]}

机构：

[1] IFW Dresden, Inst Complex Mat, Helmholtzstr 20, D-01069 Dresden, Germany

[2] Foundry Res Inst, Ctr High Temp Studies, PL-30418 Krakow, Poland

[3] TU Freiberg, Inst Mat Sci, D-09599 Freiberg, Germany

来源：

CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY | 2018年 / 61卷

关键词：

Phase diagram; Gd-Ti-Zr; CALPHAD; Thermodynamic assessment; In situ X-ray diffraction; SYSTEM; ALLOYS;

D O I：

10.1016/j.calphad.2018.04.008

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The phase diagram of the ternary Gd-Ti-Zr system has been investigated. The phase equilibria behave as a pseudo-binary Gd-(Ti, Zr) system with the solid state been characterized by the coexistence of elemental Gd and (Ti, Zr) solid solution phase with low solubility (< 1 at%) of the other elements. A continuous eutectic line connects the eutectic points of the binary Gd-Ti and Gd-Zr terminal systems. The stable miscibility gap of the liquid phase of the Gd-Ti system extends up to 15 at%Zr into the ternary alloy system. The liquidus line and phase sequence were experimentally assessed for Gd(20)Ti(40)Zt(40), Gd(40)Tiz(0)Zr(40) and GdoTisoZrie by in situ high energy synchrotron X-ray diffraction at elevated temperatures. Based on the experimental data a thermodynamic description of the ternary Gd-Ti-Zr system is derived.

引用

页码：237 / 245

页数：9

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