Application of Nomarski differential interference contrast microscopy to highlight the prior austenite grain boundaries revealed by thermal etching

被引：22

作者：

San Martin, D. ^{[1
]}

Palizdar, Y. ^{[2
]}

Cochrane, R. C. ^{[2
]}

Brydson, R. ^{[2
]}

Scott, A. J. ^{[2
]}

机构：

[1] Ctr Nacl Invest Met CENIM CSIC, Dept Met Phys, MATERALIA Grp, Madrid 28040, Spain

[2] Univ Leeds, Inst Mat Res, SPEME, Leeds LS2 9JT, W Yorkshire, England

来源：

MATERIALS CHARACTERIZATION | 2010年 / 61卷 / 05期

关键词：

Low-carbon steel; Austenite; Grain boundary; Thermal etching; Optical microscopy; Nomarski microscopy;

D O I：

10.1016/j.matchar.2010.03.001

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Revealing prior austenite grain boundaries by thermal etching has been demonstrated to be a reliable and fast method compared to chemical etching for microalloyed carbon steels. However, sometimes visualization of the thermally etched prior austenite grain boundaries is hindered by the presence of grain boundaries of other phases (e.g. ferrite and/or pearlite) which are thermally etched during slow cooling from high temperature. This work shows that, under these conditions, the use of Nomarski differential interference contrast microscopy under bright field illumination helps to highlight the thermally etched prior austenite grain boundaries. (C) 2010 Elsevier Inc. All rights reserved.

引用

页码：584 / 588

页数：5

共 3 条

[1] Revealing austenite grain boundaries by thermal etching:: advantages and disadvantages
de Andrés, CG
Caballero, FG
Capdevila, C
San Martín, D
MATERIALS CHARACTERIZATION, 2002, 49 (02) : 121 - 127
[2] Prior austenite grain measurement: A direct comparison of EBSD reconstruction, thermal etching and chemical etching
Collins, J.
Taylor, M.
Scarlett, A. L.
Palmiere, E. J.
Pickering, E. J.
MATERIALS CHARACTERIZATION, 2024, 208
[3] Novel Etching Technique for Delineation of Prior-Austenite Grain Boundaries in Low, Medium and High Carbon Steels
Thackray, Richard
Palmiere, Eric J.
Khalid, Omar
MATERIALS, 2020, 13 (15)

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