Title page for etd-0814117-093921


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URN etd-0814117-093921
Author Meng-Ting Chiou
Author's Email Address No Public.
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Department Materials and Optoelectronic Science
Year 2017
Semester 1
Degree Master
Type of Document
Language zh-TW.Big5 Chinese
Title Effect of test temperature on tensile properties and microstructure of a multi-phase medium Mn steel
Date of Defense 2017-09-08
Page Count 173
Keyword
  • deformation-induced transformation
  • medium Mn steel
  • tensile temperature
  • microstructure
  • tensile properties
  • Abstract The purpose of the study is to know the effect of test temperature on the tensile properties and microstructures of a medium manganese steel. The range of the test temperature is from room temperature to 300℃. The results showed that when tested at 75℃, highest elongation of 85% together with a large amount of deformation-induced martensites were obtained. At 100℃, the amount of deformation-induced martensite was reduced, and replaced by a small amount of deformation-induced bainite, so that caused a significant drop of elongation. When the test temperatures were higher than 150℃, the strength of the steel was reduced, and the elongation of the steel started to rise. When the test temperature was increased to 300℃, no deformation-induced transformation was found and both the tensile strength and elongation of the steel were reduced.
    Advisory Committee
  • Liuwen Chang - chair
  • Po-We Kao - co-chair
  • Chih-Pu Chang - advisor
  • Files
  • etd-0814117-093921.pdf
  • Indicate in-campus at 99 year and off-campus access at 99 year.
    Date of Submission 2017-09-14

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