Experimental Determination of Phase Equilibria in Fe-Cr-Ni-Al System

被引：1

作者：

Ojha, Rohit ^{[1
,2
]}

Helander, Thomas ^{[3
]}

Kumar, K. C. Hari ^{[2
]}

机构：

[1] Sandvik Mat Technol, Old Mumbai Pune Rd, Pune 411012, Maharashtra, India

[2] Indian Inst Technol Madras, Dept Met & Mat Engn, Chennai 600036, Tamil Nadu, India

[3] Kanthal AB, S-73427 Hallstahammar, Sweden

来源：

JOURNAL OF PHASE EQUILIBRIA AND DIFFUSION | 2021年 / 42卷 / 03期

关键词：

CALPHAD; differential scanning calorimetry (DSC); experimental phase equilibria; quaternary; thermodynamic computations; CREEP-BEHAVIOR; PRECIPITATION;

D O I：

10.1007/s11669-021-00896-8

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Alloys Fe-18Cr-9Ni-3Al, Fe-16Cr-18Ni-5Al, and Fe-20Cr-20Ni-5Al wt.% were prepared by vacuum arc melting and heat treated at 600 degrees C/514 days, 800 degrees C/56 days, 1000 degrees C/32 days, and 1100 degrees C/15 days. The microstructures of the samples were characterized to identify the equilibrium phases at each temperature. The compositions of the phases were measured with SEM-EDS. Solidus and liquidus were determined using DSC. The experimental results were compared with equilibrium thermodynamic calculations. Significant differences were observed for solidus, solvus temperatures, and compositions of the equilibrium phases.

引用

页码：428 / 438

页数：11

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