Grant: Engage Plus Grants Program
École de technologie supérieure
$12,500.00
Microstructure evolution in critical locations of large size landing gears
EF 2013-14
Résumé
Aircraft landing gears are characterized by very high strength and toughness, superior resistance to fatigue,fatigue crack growth, and corrosion. They must be also of low maintenance and low cost. Ultra High StrengthSteels and particularly 300M steel is the material of choice for landing gear applications. The alloy typicallycontains 0.45%C, 1.45%Si, 1.65%Ni, 0.7%Cr, 0.3Mo, 0.05%V. The manufacturing process of the newgeneration of large size landing gears used for heavy civilian and military aircrafts (e.g. A380) consists ofvacuum melting of ingots followed by open die and closed die forgings and finally by the quench and temper(Q&T) heat treatment process before final machining. The Q&T process is a critical step as it determines thefinal mechanical properties. The proposed project has for objective to study the evolution of the microstructureof some critical points in an actual industrial size landing gear and quantify the effect of thermal gradients andmetallurgical phase transformations on phase proportion and distributions.
Programme
Engage Plus Grants Program
Bénéficiaire
Emplacement
Quebec, Canada
Type de bénéficiaire
Academia
Type
Grant
Source
NSERC's Awards Data
Tel que publié
Application id
461628-2013
Name nom
Jahazi, Mohammad
Department département
Génie mécanique
Organization id
53
Institution établissement
École de technologie supérieure
Province en
Québec
Province fr
Québec
Country en
CANADA
Country fr
CANADA
Fiscal year exercice financier
2013
Competition year année de concours
2013
Award amount
12500
Program id
EGP2
Program name en
Engage Plus Grants Program
Program name fr
Programme de subvention d'engagement partenarial Plus
Group en
Research partnerships programs
Group fr
Programmes de partenariat
Committee code
1552
Committee name en
Quebec Internal Decision Committee
Committee name fr
Comité de décision interne pour le Québec
Area of application code
703
Area of application group en
Transportation systems and services
Area of application group fr
Services et systèmes de transport
Area of application en
Aerospace
Area of application fr
Aérospatial
Research subject code
2003
Research subject group en
Materials science and technology
Research subject group fr
Science et technologie des matériaux
Research subject en
Metallurgy
Research subject fr
Métallurgie
Partie
1
Nb partie
1
Application title
Microstructure evolution in critical locations of large size landing gears
Keyword
NSERC
Application summary
Aircraft landing gears are characterized by very high strength and toughness, superior resistance to fatigue,fatigue crack growth, and corrosion. They must be also of low maintenance and low cost. Ultra High StrengthSteels and particularly 300M steel is the material of choice for landing gear applications. The alloy typicallycontains 0.45%C, 1.45%Si, 1.65%Ni, 0.7%Cr, 0.3Mo, 0.05%V. The manufacturing process of the newgeneration of large size landing gears used for heavy civilian and military aircrafts (e.g. A380) consists ofvacuum melting of ingots followed by open die and closed die forgings and finally by the quench and temper(Q&T) heat treatment process before final machining. The Q&T process is a critical step as it determines thefinal mechanical properties. The proposed project has for objective to study the evolution of the microstructureof some critical points in an actual industrial size landing gear and quantify the effect of thermal gradients andmetallurgical phase transformations on phase proportion and distributions.
