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Questek’s ultra-high strength, high toughness Ferrium M54 steel approved for inclusion in aerospace industry MMPDS handbook

By Paul Dvorak | January 13, 2014

QuesTek Innovations says its ultra high-strength, high-toughness FerriumM54 steel has been approved for inclusion in the aerospace industry’s Metallic Materials Properties Development & Standardization (MMPDS) Handbook. This marks QuesTek’s second fully-qualified alloy, following the 2008 MMPDS approval of its ultra high strength, high toughness, corrosion resistant Ferrium S53 alloy, which is being used without toxic cadmium plating in landing gear and other corrosion-sensitive applications.
QuesTex M54 steel properties edited

Using Integrated Computational Materials Engineering (ICME) method and its Materials by Design technology, QuesTek successfully designed and rapidly developed M54 steel as a cost-effective, drop-in replacement for AerMet 100. The alloy design project was funded under two Small Business Innovation Research contracts sponsored by the U.S. Navy Naval Air Systems Command.

QuesTek accelerated M54 steel from a clean sheet design to a precise chemical composition in less than one year, and produced the first 10-ton ingot the following year. SAE International issued an Aerospace Material Specification (AMS 6516) two years later. With this MMPDS approval, M54 steel has reached full flight qualification from clean sheet design in less than six years.

The MMPDS Handbook provides standardized design values for alloys used in aerospace structures, and is accepted by the Federal Aviation Administration, the Department of Defense, and the National Aeronautics and Space Administration. The A and B-Basis design minima for M54 steel will first be published in MMPDS-09, letting engineers design components using M54 steel for flight safety critical components such as landing gear and helicopter rotor shafts. M54 steel is also an upgrade from 4340 and maraging steel grades, and is being used in demanding oil and gas and other industry applications.

QuesTek used the Accelerated Insertion of Materials analysis technique on M54 steel, using data from just three production heats, to predict its MMPDS design minima (which are usually derived from testing ten full-scale production heats). This in part gave the US Navy’s T-45 program office the confidence to fund manufacturing and rig testing of three M54 steel landing gear hook shanks before it was approved in MMPDS.

QuesTek Innovations
http://www.questek.com/ferrium-m54.html


Filed Under: Uncategorized
Tagged With: questek, questekinnovations
 

About The Author

Paul Dvorak

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