Analytical electron microscopy of aluminum ion-implanted with molybdenum

Journal Article · Sat Jan 01 00:00:00 EST 1983 · Proc. - Annu. Meet., Electron Microsc. Soc. Am.; (United States)

OSTI ID:6123078

Stephenson, L D; Bentley, J; Benson, Jr, R B; Parrish, P A

The microstructures of aluminum ion-implanted with molybdenum and subjected to various heat treatments were investigated for correlation with near-surface properties such as corrosion. Previous work indicated enhanced corrosion resistance, but dealt chiefly with the as-implanted condition and involved little microstructural characterization. In addition, the Al-Mo binary system is of interest because metastable phase formation was considered to be possible and the equilibrium phase diagram is poorly defined. Electropolished coupons 38 x 28 x 0.5 mm of 99.999% Al with approx.0.5 mm grain size were implanted with Mo/sup +/ ions at the Naval Research Laboratory. The dual energy implant schedule of 4.88 x 10/sup 19/ ions/m/sup 2/ at 50 keV plus 6.14 x 10/sup 19/ ions/m/sup 2/ at 110 keV resulted in a peak concentration of 4.4 at. % Mo (measured by ion backscattering) within the projected range of approx.50 nm. Results of the studies are presented.

• Research Organization: Oak Ridge National Lab., TN
• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 6123078
• Journal Information: Proc. - Annu. Meet., Electron Microsc. Soc. Am.; (United States), Vol. 41
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM
ION IMPLANTATION
MICROSTRUCTURE
CORROSION
DISLOCATIONS
ELECTRON MICROSCOPY
HEAT TREATMENTS
MOLYBDENUM
CHEMICAL REACTIONS
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
ELEMENTS
LINE DEFECTS
METALS
MICROSCOPY
TRANSITION ELEMENTS
360102* - Metals & Alloys- Structure & Phase Studies