Modelling the laser surface hardening in a ferrite and pearlite initial microstructure

被引：2

作者：

Castro Cerda, Felipe M. ^{[1
,5
]}

Goulas, Constantinos ^{[2
]}

Jones, Dakota ^{[3
]}

Kamyabi, Ata ^{[3
]}

Hamre, Douglas ^{[3
]}

Mendez, Patricio ^{[4
]}

Wood, Gentry ^{[3
]}

机构：

[1] Univ Santiago Chile, Dept Met, Santiago, Chile

[2] Univ Twente, Fac Engn Technol ET, Dept Design Prod & Management, Enschede, Netherlands

[3] Div Apollo Machine & Welding Ltd, Apollo Clad Laser Cladding, Leduc, AB, Canada

[4] Univ Alberta, Dept Chem & Mat Engn, Edmonton, AB, Canada

[5] Univ Santiago Chile, Dept Met, Estn Cent, Alameda 3363, Santiago 9170022, Chile

来源：

MATERIALS SCIENCE AND TECHNOLOGY | 2023年 / 39卷 / 18期

关键词：

Laser heat treatment; Fast heating; Austenite; Martensite; Modelling; AUSTENITE; STEEL; PHASE;

D O I：

10.1080/02670836.2023.2240101

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The present study explores the microstructure and the depth-dependence of hardness after a single pass laser heat-treatment. The initial microstructure was selected as ferrite and pearlite in different fractions, with the aim of studying low, medium, and high carbon steels. A modification of an existing model is proposed, whereby the cementite dissolution is incorporated to better reflect the microstructure evolution during the rapid thermal cycle. It is found that the predictions under the new paradigm show fair agreement with the experimental data. The new model indicates that the correct estimation of the composition of austenite near the transition zone produces a more accurate prediction of the hardness profile, reducing the overestimation obtained in previous works.

引用

页码：3123 / 3133

页数：11

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