Metallurgical and Materials Transactions A

, Volume 38, Issue 6, pp 1367–1370 | Cite as

Strategy to Improve the High-Temperature Mechanical Properties of Cr-Alloy Coatings

Communications

Abstract

Electroplated Cr-C alloy coatings exhibit significant increases in hardness and strength when exposed to elevated temperatures up to about 600 °C, owing to the evolution of their nanostructure. In this article, we describe a strategy by which this evolution can be shifted to even higher temperatures (approaching 850 °C), through a ternary addition of phosphorus. The resulting Cr-C-P coatings may be suitable for applications at higher service temperatures, where more conventional Cr-based coatings soften rapidly.

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Copyright information

© THE MINERALS, METALS & MATERIALS SOCIETY and ASM INTERNATIONAL 2007

Authors and Affiliations

  1. 1.Department of Materials Science and EngineeringMassachusetts Institute of TechnologyCambridgeUSA
  2. 2.Department of Surface Chemistry and CoatingsCINI-TENARISBuenos AiresArgentina

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