A new etching route for revealing the austenite grain boundaries in an 11.4% Cr precipitation hardening semi-austenitic stainless steel
A new etching route for revealing the austenite grain boundaries in an 11.4% Cr precipitation hardening semi-austenitic stainless steel
A detailed metallographic characterization of a precipitation hardening semi-austenitic stainless steel is described. A new etching procedure based on the Lichtenegger and Blöch color etching solution, which is frequently used in duplex stainless steels to differentiate delta ferrite from austenite, has been used to differentiate martensite, austenite and the Chi-phase in this stainless steel. By changing the etching conditions, this etchant now reveals the austenite grain boundaries when the steel is in the austenitic state. Moreover, this solution is able to reveal also the prior austenite grain boundaries when the steel is in its martensitic state. This etching procedure represents a great advantage because it reveals, at the same time, different features of the microstructure.
Austenite, Etchant, Grain boundaries, Martensite, Stainless steel
455-460
San Martin, D.
3cb4e081-1f6f-4f63-a25f-30613c3288a1
Rivera Diaz del Castillo, P.E.J.
6e0abc1c-2aee-4a18-badc-bac28e7831e2
Peekstok, E.
baf5e3fd-8710-4ed6-ab52-784e1ea0bd11
van der Zwaag, S.
ad11f134-8a43-4635-9feb-7c3d01158f4b
May 2007
San Martin, D.
3cb4e081-1f6f-4f63-a25f-30613c3288a1
Rivera Diaz del Castillo, P.E.J.
6e0abc1c-2aee-4a18-badc-bac28e7831e2
Peekstok, E.
baf5e3fd-8710-4ed6-ab52-784e1ea0bd11
van der Zwaag, S.
ad11f134-8a43-4635-9feb-7c3d01158f4b
San Martin, D., Rivera Diaz del Castillo, P.E.J., Peekstok, E. and van der Zwaag, S.
(2007)
A new etching route for revealing the austenite grain boundaries in an 11.4% Cr precipitation hardening semi-austenitic stainless steel.
Materials Characterization, 58 (5), .
(doi:10.1016/j.matchar.2006.06.009).
Abstract
A detailed metallographic characterization of a precipitation hardening semi-austenitic stainless steel is described. A new etching procedure based on the Lichtenegger and Blöch color etching solution, which is frequently used in duplex stainless steels to differentiate delta ferrite from austenite, has been used to differentiate martensite, austenite and the Chi-phase in this stainless steel. By changing the etching conditions, this etchant now reveals the austenite grain boundaries when the steel is in the austenitic state. Moreover, this solution is able to reveal also the prior austenite grain boundaries when the steel is in its martensitic state. This etching procedure represents a great advantage because it reveals, at the same time, different features of the microstructure.
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More information
Accepted/In Press date: 16 June 2006
e-pub ahead of print date: 24 July 2006
Published date: May 2007
Keywords:
Austenite, Etchant, Grain boundaries, Martensite, Stainless steel
Identifiers
Local EPrints ID: 492484
URI: http://eprints.soton.ac.uk/id/eprint/492484
ISSN: 1044-5803
PURE UUID: 45b858f4-4cc1-415f-b619-1371cce40c93
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Date deposited: 29 Jul 2024 17:00
Last modified: 30 Jul 2024 02:06
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Contributors
Author:
D. San Martin
Author:
P.E.J. Rivera Diaz del Castillo
Author:
E. Peekstok
Author:
S. van der Zwaag
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