AlN Precipitation During Isothermal Annealing of Ultra Low Carbon Steel

被引：17

作者：

Radis, Rene ^{[1
,2
]}

Schwarz, Sabine ^{[3
]}

Zamberger, Sabine ^{[4
]}

Kozeschnik, Ernst ^{[1
]}

机构：

[1] Vienna Univ Technol, Christian Doppler Lab Early Stages Precipitat, Inst Mat Sci & Technol, A-1040 Vienna, Austria

[2] Graz Univ Technol, Inst Mat Sci & Welding, A-8010 Graz, Austria

[3] Vienna Univ Technol, Univ Serv Ctr Transmiss Electron Microscopy, A-1040 Vienna, Austria

[4] Voestalpine Stahl Donawitz GmbH & Co KG, A-8700 Leoben, Austria

来源：

STEEL RESEARCH INTERNATIONAL | 2011年 / 82卷 / 08期

关键词：

AlN; grain boundary precipitation; precipitation kinetics; ultra low carbon steel; MULTICOMPONENT MULTIPHASE SYSTEMS; ALUMINUM-KILLED STEEL; HOT DUCTILITY; NITRIDE; KINETICS; AUSTENITE; ALLOY; SIZE; AIN;

D O I：

10.1002/srin.201000289

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The precipitation of AlN is investigated in the austenite region of ultra low carbon steel. The evolution of the size and the morphology of AlN precipitates are studied by transmission electron microscopy (TEM) after isothermal annealing for different times at temperatures of 950 degrees C and 1050 degrees C. Various different morphologies are observed, including cuboids, large plates as well as irregular structures. In addition to the experimental analysis, thermo-kinetic simulations are carried out with the software package MatCalc. The numerically calculated evolution of the mean radii as well as the time-temperature-precipitation (TTP) diagram for AlN precipitation in the present alloy show good agreement with experiment.

引用

页码：905 / 910

页数：6

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