Paper Title:
Thermal Stability of Vacuum Hot Pressed Bulk Nanostructured Al-Cu Alloys
  Abstract

Bulk nanostructured Al-4Cu alloy was synthesized by high energy ball milling followed by vacuum hot pressing. Its thermal stability was investigated up to 450°C using differential scanning calorimetry, X-ray diffraction, and transmission electron microscopy. The results showed that grain growth in this Al-4Cu alloy was very limited and grain sizes in the range of 100 nm were still present in the alloys after exposure to 450 °C corresponding to a temperature as high as 0.77 T/Tm. The TEM investigations reveal that such a high thermal stability against grain growth observed in this alloy is attributed to the presence of ultrafine dispersoids.

  Info
Periodical
Chapter
Chapter 5: Microstructure and Properties
Edited by
Hajo Dieringa, Norbert Hort and Karl Ulrich Kainer
Pages
234-237
DOI
10.4028/www.scientific.net/MSF.690.234
Citation
T. Shanmugasundaram, M. Heilmaier, V. S. Sarma, B.S. Murty, "Thermal Stability of Vacuum Hot Pressed Bulk Nanostructured Al-Cu Alloys", Materials Science Forum, Vol. 690, pp. 234-237, 2011
Online since
June 2011
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Price
$32.00
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