The nonlinear lattice expansion of iron alloys in the range 100-1600 K

被引:64
作者
van Bohemen, S. M. C. [1 ]
机构
[1] Tata Steel Res Dev & Technol, NL-1970 CA Ijmuiden, Netherlands
关键词
Lattice parameter; Dilatometry; Thermal expansion; Ferrite; Austenite; PLAIN CARBON-STEELS; TRANSFORMATION KINETICS; PHASE-TRANSFORMATIONS; DILATOMETRIC ANALYSIS; THERMAL-EXPANSION; VOLUME CHANGE; AUSTENITE; TEMPERATURE; MODEL; DECOMPOSITION;
D O I
10.1016/j.scriptamat.2013.05.009
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Analysis of dilatometry and X-ray diffraction data demonstrates that the thermally induced lattice expansion of face-centered and body-centered cubic iron in the temperature range 100-1600 K is best described by an exponential temperature dependence. The equations proposed are relatively simple though give much better predictions of the thermal expansion than linear approximations. As such they can be of great importance for engineering and metallurgical calculations, in particular to accurately determine the transformation kinetics from dilatometry data. (C) 2013 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码:315 / 318
页数:4
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