Size and distribution of micropores and voids in 5052 aluminum alloys during tensile deformation

Tomohiko Hojo, Mamoru Kikuchi, Kazuyuki Shimizu, Hiroyuki Toda, Akihisa Takeuchi, Eiji Akiyama

研究成果: Article査読

抄録

Micropore growth and void initiation and growth behaviors of 5052 aluminum alloys during tensile deformation were observed by means of X-ray computed tomography (CT) using the X-ray image beamline (BL20XU) of the Japanese synchrotron radiation facility (SPring-8). Tensile tests were carried out in ambient and wet conditions. In 5052 alloy tensile tested in wet condition, the drop of stress followed by the maximum stress was remarkable, and the fracture strain was reduced in comparison with those of 5052 alloy tested in ambient condition. The number of fine micropores and voids decreased in 5052 alloy when plastic deformation started and the decrease in the amount of fine micropores and voids in the wet condition was less than those in ambient condition. These might be caused by the acceleration of micropore growth and void initiation and growth during tensile testing in wet condition.

本文言語English
ページ(範囲)630-634
ページ数5
ジャーナルKeikinzoku/Journal of Japan Institute of Light Metals
68
11
DOI
出版ステータスPublished - 2018

ASJC Scopus subject areas

  • 材料力学
  • 機械工学
  • 金属および合金
  • 材料化学

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