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An Advanced Alloy for Landing Gear and Aircraft Structural Applications - Aerometr® 100 Alloy
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Abstract
Carpenter AerMet® 100 Alloy is a nominally 0.23% C, 13.4% Co, 3.1% Cr, 11.1% Ni, 1.2% Mo and balance Fe proprietary alloy designed for aerospace structural applications requiring a combination of high strength, high fracture toughness and good resistance to stress corrosion cracking. AerMet® 100 alloy was designed to be a candidate to replace 300M in the Navy's carrier based aircraft but it is now being evaluated for other applications where its nominal 285 ksi (1965 MPa) U.T.S., 115 ksi √in. (126 MPa √m) KIc and 35 ksi √in. (38 MPa √m) KIscc in a 3.5% NaCl solution can be utilized. This paper presents AerMet® 100 alloy and discusses its typical properties after the recommended 1625°F (885°C), 1h solution treatment and 900°F (482°C), 5 hour age. AerMet® 100 alloy is then compared with AF1410, Marage 250, 300M, H11, HyTuf and 4340. Finally, aging curves for AerMet® 100 alloy aged for 5 hours between 200 and 950°F (93 and 510°C) are presented and the effects of aging treatments on mechanical properties are discussed.
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Citation
Novotny, P. and McCaffrey, T., "An Advanced Alloy for Landing Gear and Aircraft Structural Applications - Aerometr® 100 Alloy," SAE Technical Paper 922040, 1992, https://doi.org/10.4271/922040.Also In
References
- Hemphill R. M. Wert D. E. “High Strength, High Fracture Toughness Structural Alloys,” U.S. Patent No. 5,087,415 Feb. 11 1992 6
- Carpenter Technology Corporation internal data
- Aerospace Structural Metals Handbook 1991 Metals and Ceramics Information Center Battelle, Columbus, OH 1990 1 30
- Aerospace Structural Metals Handbook 1991 Metals and Ceramics Information Center Battelle, Columbus, OH 1990 1 68
- Aerospace Structural Metals Handbook 1991 Metals and Ceramics Information Center Battelle, Columbus, OH 1990 1 34
- Aerospace Structural Metals Handbook 1991 Metals and Ceramis Information Center Battelle, Columbus, OH 1990 1 49
- Aerospace Structural Metals Handbook 1991 Metals and Ceramics Information Center Battelle, Columbus, OH 1990 1 12
- Aerospace Structural Metals Handbook 1991 Metals and Ceramics Information Center Battelle, Columbus, OH 1990 1 45
- Novotny P. M. “An Aging Study of AerMet® 100 Alloy,” Proceedings of the Gilbert R. Speich Symposium on the Fundamentals of Aging and Tempering in Bainitic and Martensitic Steel Products ISS, Warrendale, PA October 1992
- AMS 6532 Specification, SAE Warrendale, PA July 1992
- Military Handbook MIL-HDBK-5F “Metallic Materials and Elements for Aerospace Vehicle Structures,” Change Notice 1 Revision December 1991