An Improved Ni-Cr-Mo Alloy for Corrosion Service
- 1 August 1976
- journal article
- Published by Association for Materials Protection and Performance (AMPP) in Corrosion
- Vol. 32 (8) , 332-336
- https://doi.org/10.5006/0010-9312-32.8.332
Abstract
A new Ni-Cr-Mo corrosion resistant alloy, Hastelloy alloy C-4, has been developed that does not precipitate an intermetallic Mu phase upon aging in the 650 to 1090 C temperature range. This further improvement of Hastelloy alloy C-276 has evolved from a detailed study of the effects of the substitutional and interstitial elements on the precipitation of intermetallic and carbide phases. Data have been generated to show that Hastelloy alloy C-4 is basically equivalent in corrosion resistance to its predecessors in both oxidizing and reducing media.Keywords
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