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ASM Handbook

Metallography and Microstructures

Edited by
George F. Vander Voort
George F. Vander Voort
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ASM International
Volume
9
ISBN electronic:
978-1-62708-177-1
Publication date:
2004
Book Chapter

Metallography and Microstructures of Stainless Steels and Maraging Steels

By
George F. Vander Voort
George F. Vander Voort
Buehler Ltd.
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Gabriel M. Lucas
Gabriel M. Lucas
Buehler Ltd.
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Elena P. Manilova
Elena P. Manilova
Polzunov Central Boiler and Turbine Institute
,
St. Petersburg
,
Russia
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Published:
2004
Page range:
670 - 700
Publication history
November 01, 2004

Abstract

This article describes metallographic preparation and examination techniques for stainless steels and maraging steels. It presents a series of micrographs demonstrating microstructural features of these alloys. Procedures used to prepare stainless steels for macroscopic and microscopic examination are similar to those used for carbon, alloy, and tool steels. Cutting and grinding must be carefully executed to minimize deformation because the austenitic grades work harden readily. The high-hardness martensitic grades that contain substantial undissolved chromium carbide are difficult to polish while fully retaining the carbides. Unlike carbon, alloy, and tool steels, etching techniques are more difficult due to the high corrosion resistance of stainless steels and the various second phases that may be encountered. The microstructures of stainless steels can be quite complex. Matrix structures vary according to the type of steel, such as ferritic, austenitic, martensitic, precipitation hardenable, or duplex.

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George F. Vander Voort, Gabriel M. Lucas, Elena P. Manilova, 2004. "Metallography and Microstructures of Stainless Steels and Maraging Steels", Metallography and Microstructures, George F. Vander Voort

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