The first direct observation of hydrogen trapping sites in TiC precipitation-hardening steel through atom probe tomography

被引：322

作者：

Takahashi, Jun ^{[1
]}

Kawakami, Kazuto ^{[1
]}

Kobayashi, Yukiko ^{[1
]}

Tarui, Toshimi ^{[2
]}

机构：

[1] Nippon Steel Corp Ltd, Adv Technol Res Labs, Futtsu City, Chiba 2938511, Japan

[2] Nippon Steel Corp Ltd, Steel Res Labs, Futtsu City, Chiba 2938511, Japan

来源：

SCRIPTA MATERIALIA | 2010年 / 63卷 / 03期

关键词：

Atom probe tomography; Deuterium; Hydrogen trapping site; Titanium carbide; PARTICLES;

D O I：

10.1016/j.scriptamat.2010.03.012

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

For the first time ever, atomic-scale direct observation of deuterium atoms trapping at nano-sized titanium carbide (TiC) precipitates in steel was successfully achieved using atom probe tomography (APT). Deuterium gas charging into the needle specimen and subsequently quenching were conducted in our designed chamber attached to three-dimensional atom probe (3DAP). The deuterium atoms were definitely observed on the broad surface of TiC platelets, which indicated that the broad interface between the matrix and TiC was the main trapping site. (C) 2010 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：261 / 264

页数：4

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