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Improved Steel for Landing Gear Design
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English
Abstract
An improved high-strength, high-toughness steel has been developed which shows considerable promise for landing gear applications. Previous materials provided high strength or high toughness, but not both. The improved material is a modified chemistry of AF1410 steel with increased carbon and an altered heat treat process. Tensile ultimate strengths (Ftu) of over 260 ksi (1.79 GPa) have been achieved while maintaining plane strain fracture toughness (Klc) in excess of 100 ksh/inch (110 MPa√m). In addition, the material has low sensitivity to environmental factors such as hydrogen embrittlement and stress corrosion cracking.
Authors
Citation
Macy, W., Shea, M., Perez, R., and Newcomer, R., "Improved Steel for Landing Gear Design," SAE Technical Paper 892335, 1989, https://doi.org/10.4271/892335.Also In
References
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- Garland, K.C. “SCC Threshold for 300M and Other Alloy Steels,” MCAIR TWD LMA03.11-042R, TR 3NA-667. ED
- McDonnell Material Specification 216, Bars and Forgings Modified 10Ni-14Co Steel December 1988