Accession Number:

ADA614146

Title:

Ferrium M54 Steel

Descriptive Note:

Technical memo 2014

Corporate Author:

NAVAL AIR WARFARE CENTER AIRCRAFT DIV PATUXENT RIVER MD

Report Date:

2015-03-18

Pagination or Media Count:

49.0

Abstract:

Bare and Zn-14 Ni alloy coated Ferrium M54 steels were studied to clarify their mechanical, fatigue, and stress corrosion cracking SCC properties. Compared to the currently available high strength and high toughness steel, AerMet 100, this steel has much greater SCC resistance, but similar mechanical properties and susceptibility to corrosion fatigue. The Zn-14 Ni alloy coating appears to provide the steel some protection against hydrogen embrittlementSCC and corrosion fatigue in aqueous 3.5 NaCl solution of pH 7.3. The fatigue crack growth mechanisms of the bare and coated steels are striation formation in air, and a combination of striation formation and intergranular cracking in aqueous 3.5 NaCl solution.

Subject Categories:

  • Properties of Metals and Alloys
  • Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE