Dependence of Carbon Concentration and Alloying Elements on the Stability of Iron Carbides

被引：24

作者：

Sawada, Hideaki ^{[1
]}

Maruyama, Naoki ^{[2
]}

Tabata, Shinichiro ^{[3
]}

Kawakami, Kazuto ^{[4
]}

机构：

[1] Nippon Steel, Adv Technol Res Labs, 1-8 Fuso Cho, Amagasaki, Hyogo 6600891, Japan

[2] Nippon Steel, Adv Technol Res Labs, 20-1 Shintomi, Futtsu, Chiba 2938511, Japan

[3] Nippon Steel, Yawata Res & Dev Lab, Tobata Ku, 1-1 Tobihata, Kitakyushu, Fukuoka 8048501, Japan

[4] Nippon Steel Technol Co Ltd, 20-1 Shintomi, Futtsu, Chiba 2930011, Japan

来源：

ISIJ INTERNATIONAL | 2019年 / 59卷 / 06期

关键词：

martensite; iron carbide; first-principles calculation; three-dimensional atom probe; STEELS; MN; CEMENTITE; KINETICS; PHASES; QUENCH;

D O I：

10.2355/isijinternational.ISIJINT-2018-695

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The precipitation of iron carbides is a crucial factor that determines the properties of tempered martensite. However, the effect of alloying elements on the carbon concentration of epsilon carbide has not yet been clarified. In this work, we studied the effect of alloying elements on the carbon concentration of epsilon carbide using first-principles calculations and a three-dimensional atom probe. The first-principles calculations showed that epsilon carbide with a lower carbon concentration tends to form by the inclusion of Si. The carbon concentration in epsilon carbide measured by the three-dimensional atom probe was consistent with the first principles calculations.

引用

页码：1128 / 1135

页数：8

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