Title page for etd-0201101-141330


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URN etd-0201101-141330
Author I-Ching Hsiao
Author's Email Address d8636807@student.nsysu.edu.tw
Statistics This thesis had been viewed 5338 times. Download 1202 times.
Department Materials Science and Engineering
Year 2000
Semester 1
Degree Ph.D.
Type of Document
Language zh-TW.Big5 Chinese
Title Development of Low Temperature Superplasticity and Analyses of Deformation Mechanisms in 5083 Al Alloys
Date of Defense 2000-01-17
Page Count 261
Keyword
  • superplactictiy
  • texture
  • 5083Al
  • Abstract The current study developed a simple rolling-type TMT to process the commerical 5083 Al to exhibit low temperature superplacticity at 230 and 250 oC, with optimum tensile elongation to 511% and 443%. The TMT processed thin sheet contained (sub)grains measureing 0.3 um.
    The bimodal of grain boundary misorientation distribution of as-TMT3 would be gradually replaced by a more random distribution if the alloy was subjected to increase TMT or tensile deformation strain level.
    It would be lost it's superplasticity when the testing temperature was higher than 270 oC. But it would exhibit superplasticity again when the thsting temperature was higher than 400 oC.
    Advisory Committee
  • Po-We Kao - chair
  • Shih-Chin Chang - co-chair
  • Chih-Pu Chang - co-chair
  • Li-Ha Chen - co-chair
  • Yeong-Maw Hwang - co-chair
  • Chih-Ching Huang - advisor
  • Files
  • 5083鋁合金低溫超塑性研發與變形機構分析.pdf
  • indicate access worldwide
    Date of Submission 2001-02-01

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