Segregation of phosphorus to ferrite grain boundaries during transformation in an Fe-P alloy

被引：9

作者：

Kim, Jeong In ^{[1
]}

Pak, Jun Hak ^{[2
]}

Park, Kyong-Su ^{[2
]}

Jang, Jae Hoon ^{[2
]}

Suh, Dong-Woo ^{[1
]}

Bhadeshia, Harshad Kumar Dharamshi Hansraj ^{[1
,3
]}

机构：

[1] POSTECH, Grad Inst Ferrous Technol, Pohang 790784, Gyeongbuk, South Korea

[2] POSCO, Tech Res Labs, Pohang, South Korea

[3] Univ Cambridge, Cambridge, England

来源：

INTERNATIONAL JOURNAL OF MATERIALS RESEARCH | 2014年 / 105卷 / 12期

关键词：

Phosphorus; Segregation; Grain boundary; Ferrite; Austenite; CHARPY IMPACT PROPERTIES; EQUILIBRIUM SEGREGATION; BORON ADDITION; GROWTH; CARBON; DIFFUSION; STEEL; RECRYSTALLIZATION; EMBRITTLEMENT; MODEL;

D O I：

10.3139/146.111129

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

A binary alloy of iron containing 0.17 wt.% of phosphorus has been heat treated under a variety of conditions in order to see whether the segregation of phosphorus to grain boundaries can be controlled. The alloy transforms fully into ferrite. It is found that the majority of solute found at the ferrite grain boundaries has its origins in the temperature range where phase transformation occurs, in other words, phosphorus that is accumulated and dragged with the growing ferrite-austenite transformation front. As a consequence, it cannot be suppressed using cooling rates as high as 400 K s(-1).

引用

页码：1166 / 1172

页数：7

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