Hard particle reinforced aluminum-alloys for aircraft applications EWISCO 1993--1994

Conference · Sat Dec 31 04:00:00 EST 1994

OSTI ID:160432

Lugscheider, E; Jokiel, P; Remer, P ^[1]; Yushchenko, K; Borisov, Y ^[2]; Vitiaz, P ^[3]; Steinhaeuser, S ^[4]

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1. Materials Science Inst., Aachen (Germany)
2. Electric Paton Welding Inst., Kiev (Ukraine)
3. Powder Metallurgy Association, Minsk (Belarus)
4. TU Chemnitz-Zwickau, Chemnitz (Germany)

Light metals such as aluminum, titanium, magnesium are widely used as structural materials in industrial parts. Their low density combined with reasonable physical properties are the main advantages of these materials that have led to a wide range of applications in transportation, particularly in the fabrication of aircrafts. Some of the disadvantages of these light metals and alloys are low wear resistance, high reactivity and low thermal tolerance. Thermal sprayed coatings are required to protect these structures and to broaden the use of these materials. The goal of this collaborative research work was to improve wear and corrosion properties of common Al-alloys. Five hard particle reinforced aluminum based powders were sprayed with different thermal spray processes. In order to optimize the wear and corrosion resistance of the coatings different spray processes and spray parameters were investigated. The coatings were produced mainly using atmospherical plasma spraying and CDS (continuous detonation spraying). Further tests with two ukrainian types of flame spraying were carried out. The aluminum alloy 7075 [AlZnMgCu1,5] was used as substrate material. Powder and coating morphology, porosity and homogeneity were investigated. Several tests for wear, corrosion behavior, bond strength and hardness were also carried out. The results of this investigation illustrate the excellent properties of thermal sprayed surface coatings in the field of wear and corrosion protection which expands the future applications of these aluminum alloys. This paper presents the results obtained at the Materials Science Institute, Aachen.

• OSTI ID: 160432
• Report Number(s): CONF-940684--; ISBN 0-87170-509-5
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
36 MATERIALS SCIENCE
AIRCRAFT COMPONENTS
ALUMINIUM
ALUMINIUM ALLOYS
BONDING
CHEMICAL COMPOSITION
COMPOSITE MATERIALS
CORROSION PROTECTION
HARDNESS
MICROSTRUCTURE
MORPHOLOGY
PARTICLE SIZE
POROSITY
POWDERS
SILICON ALLOYS
SILICON CARBIDES
SPRAY COATING
TITANIUM CARBIDES
WEAR RESISTANCE