Microstructures of rapidly solidified hypereutectic Al-Mn alloys

Conference · · TMS (The Metallurgical Society) Paper Selection; (USA)

OSTI ID:5451490

Field, R D; Fraser, H L ^[1]

---

1. Univ. of Illinois, Urbana (USA)

The microstructures of hypereutectic A1-Mn alloys rapidly solidified via laser surface melting and melt-spun ribbon techniques have been characterized using analytical transmission electron microscopy. The response of the as-solidified microstructure to subsequent heat treatment has also been investigated. At high Mn concentration, the rapidly solidified microstructure contains a complex second phase which exhibits icosahedral symmetry in electron diffraction patterns. Computer simulations of diffraction data have been produced using a multiple twinning model.

• OSTI ID: 5451490
• Report Number(s): CONF-840909--
• Journal Information: TMS (The Metallurgical Society) Paper Selection; (USA), Journal Name: TMS (The Metallurgical Society) Paper Selection; (USA) Vol. 56; ISSN 0197-1689; ISSN TMPSA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360102* -- Metals & Alloys-- Structure & Phase Studies
ALLOY SYSTEMS
ALLOYS
ALUMINIUM ALLOYS
BINARY ALLOY SYSTEMS
COHERENT SCATTERING
COMPUTERIZED SIMULATION
COOLING
CRYSTAL MODELS
CRYSTAL STRUCTURE
DIFFRACTION
ELECTRON DIFFRACTION
ELECTRON MICROSCOPY
EUTECTOIDS
HEAT TREATMENTS
MANGANESE ALLOYS
MATHEMATICAL MODELS
MICROSCOPY
MICROSTRUCTURE
PHASE TRANSFORMATIONS
SCATTERING
SIMULATION
SOLIDIFICATION
TRANSMISSION ELECTRON MICROSCOPY
TWINNING