Paper Title:
Surface Amorphization in Intermetallic Compounds by Shot Peening
  Abstract

Surface amorphization by shot peening in intermetallic compounds was examined. The formation of amorphous layer has been verified in Ti-Ni and Zr-Co-Ni alloys. In Ti-Ni alloy, an amorphous phase and nanocrystalline grains were detected by TEM for 120 s peening duration. However, recrystallization and grain growth occurred, when peening duration was up to 400 s. In Zr-Co-Ni alloy, an amorphous phase coexisting with nanocrystalline grains was observed in Zr-37Co-13Ni alloy. For other alloy compositions (Zr-50Co and Zr-50Ni), an amorphous phase was not observed, and nanocrystalline grains were observed. All the observed nanocrystalline grains may be recrystallized from amorphous phase, because their shape was spherical.

  Info
Periodical
Materials Science Forum (Volumes 449-452)
Edited by
S.-G. Kang and T. Kobayashi
Pages
197-200
DOI
10.4028/www.scientific.net/MSF.449-452.197
Citation
H. Nakayama, K. Tsuchiya, Y. Todaka, M. Umemoto, K. Morii, T. Shimizu, "Surface Amorphization in Intermetallic Compounds by Shot Peening", Materials Science Forum, Vols. 449-452, pp. 197-200, 2004
Online since
March 2004
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$35.00
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