An empirical model to predict the transformation of δ-ferrite in a niobium-stabilized austenitic weld metal under non-isothermal conditions

Joseph K.L. Lai

doi:10.1016/0921-5093(91)90828-B

An empirical model to predict the transformation of δ-ferrite in a niobium-stabilized austenitic weld metal under non-isothermal conditions

Joseph K.L. Lai

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

3 Citations (Scopus)

Abstract

The kinetics of δ-ferrite transformation in a 16wt.%Cr-8wt.%Ni-6wt.%Mn-(Mo, V, Nb, B) austenitic weld metal have been studied. A "master" equation has been produced to describe the isothermal δ-ferrite transformation behaviour in the temperature range 600-950°C. An empirical model is developed which can be used to predict the fraction of δ-ferrite transformed under non-isothermal conditions. The model involves iterative computation of the "master" equation on isothermal data. Good agreement between prediction and experimental results has been obtained. © 1991.

Original language	English
Pages (from-to)	261-266
Journal	Materials Science and Engineering A
Volume	148
Issue number	2
DOIs	https://doi.org/10.1016/0921-5093(91)90828-B
Publication status	Published - 14 Dec 1991

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title = "An empirical model to predict the transformation of δ-ferrite in a niobium-stabilized austenitic weld metal under non-isothermal conditions",

abstract = "The kinetics of δ-ferrite transformation in a 16wt.\%Cr-8wt.\%Ni-6wt.\%Mn-(Mo, V, Nb, B) austenitic weld metal have been studied. A {"}master{"} equation has been produced to describe the isothermal δ-ferrite transformation behaviour in the temperature range 600-950°C. An empirical model is developed which can be used to predict the fraction of δ-ferrite transformed under non-isothermal conditions. The model involves iterative computation of the {"}master{"} equation on isothermal data. Good agreement between prediction and experimental results has been obtained. {\textcopyright} 1991.",

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T1 - An empirical model to predict the transformation of δ-ferrite in a niobium-stabilized austenitic weld metal under non-isothermal conditions

AU - Lai, Joseph K.L.

PY - 1991/12/14

Y1 - 1991/12/14

N2 - The kinetics of δ-ferrite transformation in a 16wt.%Cr-8wt.%Ni-6wt.%Mn-(Mo, V, Nb, B) austenitic weld metal have been studied. A "master" equation has been produced to describe the isothermal δ-ferrite transformation behaviour in the temperature range 600-950°C. An empirical model is developed which can be used to predict the fraction of δ-ferrite transformed under non-isothermal conditions. The model involves iterative computation of the "master" equation on isothermal data. Good agreement between prediction and experimental results has been obtained. © 1991.

AB - The kinetics of δ-ferrite transformation in a 16wt.%Cr-8wt.%Ni-6wt.%Mn-(Mo, V, Nb, B) austenitic weld metal have been studied. A "master" equation has been produced to describe the isothermal δ-ferrite transformation behaviour in the temperature range 600-950°C. An empirical model is developed which can be used to predict the fraction of δ-ferrite transformed under non-isothermal conditions. The model involves iterative computation of the "master" equation on isothermal data. Good agreement between prediction and experimental results has been obtained. © 1991.

UR - https://www.scopus.com/pages/publications/0026397221

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-0026397221&origin=recordpage

U2 - 10.1016/0921-5093(91)90828-B

DO - 10.1016/0921-5093(91)90828-B

M3 - RGC 21 - Publication in refereed journal

SN - 0921-5093

VL - 148

SP - 261

EP - 266

JO - Materials Science and Engineering A

JF - Materials Science and Engineering A

IS - 2

ER -

An empirical model to predict the transformation of δ-ferrite in a niobium-stabilized austenitic weld metal under non-isothermal conditions

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