publication . Article . 2005

Mechanical Properties of Thermomechanical Treated Hyper-Eutectic Al-Si-(Fe,Mn,Cu) Materials

Umezawa, Osamu;
Open Access
  • Published: 01 Jan 2005 Journal: MATERIALS TRANSACTIONS, volume 46, pages 2,616-2,623 (issn: 1345-9678, eissn: 1347-5320, Copyright policy)
  • Publisher: Japan Institute of Metals
Abstract
Tensile and high-cycle fatigue behavior of thermomechanical treated hyper-eutectic Al-Si-(Fe, Mn, Cu) materials were studied. Through the repeated thermomechanical treatment (RTMT) which is a repeat of the multi steps cold-working followed by heat treatment, Si crystals and/or intermetallic compounds were broken into some fragments and dispersed in the aluminum matrix. Fine dispersion of the second phase particles exhibited good ductility, since early fracture was overcome. A few large Si crystals or aggregates of compounds, however, gave an origin of fatigue crack generation. Since microcrack linkage generates a larger fetal crack, not only refinement but also ...
Subjects
free text keywords: Mechanical Engineering, General Materials Science, Mechanics of Materials, Condensed Matter Physics, Ultimate tensile strength, Composite material, Strain rate, Flow stress, Ductility, Intermetallic, Materials science, Fatigue limit, Eutectic system, Aluminium, chemistry.chemical_element, chemistry, Metallurgy, aluminum-silicon alloys, thermomechanical treatment, microstructual refinement, fatigue fracture
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publication . Article . 2005

Mechanical Properties of Thermomechanical Treated Hyper-Eutectic Al-Si-(Fe,Mn,Cu) Materials

Umezawa, Osamu;