Discontinuous yielding induced by the addition of nickel to interstitial-free steel

被引：39

作者：

Akama, D. ^{[1
,2
]}

Nakada, N. ^{[1
,2
]}

Tsuchiyama, T. ^{[1
,2
]}

Takaki, S. ^{[1
,2
]}

Hironaka, A. ^{[3
]}

机构：

[1] Kyushu Univ, Dept Mat Sci & Engn, Nishi Ku, Fukuoka 8190395, Japan

[2] Kyushu Univ, Int Inst Carbon Neutral Energy Res WPI CNER I2, Fukuoka 8190395, Japan

[3] Nisshin Steel Co Ltd, Shunan City, Yamaguchi 7468666, Japan

来源：

SCRIPTA MATERIALIA | 2014年 / 82卷

关键词：

Interstitial-free (IF) steels; Grain boundary strengthening; Hall-Petch effect; Yield phenomena; ALLOYS; IRON;

D O I：

10.1016/j.scriptamat.2014.03.012

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Interstitial-free steels containing 1-3% Ni were tensile tested. A clear yield point and yield point elongation were observed in each steel, even though they contained no solute carbon or nitrogen in the ferrite matrix. The mechanism could be explained by grain refinement strengthening enhanced by the addition of Ni, which is derived from the increase in Hall-Petch coefficient caused by grain boundary segregation. (C) 2014 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：13 / 16

页数：4

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