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Title page for etd-0706110-154344


URN etd-0706110-154344 Statistics This thesis had been viewed 1677 times. Download 0 times.
Author Han-Ping Chen
Author's Email Address No Public.
Department Materials Engineering
Year 2009 Semester 2
Degree Master Type of Document Master's Thesis
Language zh-TW.Big5 Chinese Page Count 94
Title Effects of Cyclic Hydrogenation and Subsequent Solution Treatment on the Hydrogen Distribution of Ti-15V-3Al-3Sn-3Cr Alloy
Keyword
  • Reciprocating wear test
  • Ti-15V-3Al-3Cr-3Sn
  • MOM
  • XRD
  • cyclic hydrogenation-solution treatment
  • cyclic hydrogenation-solution treatment
  • XRD
  • MOM
  • Ti-15V-3Al-3Cr-3Sn
  • Reciprocating wear test
  • Abstract The as-received and pre-heat treated sheets of Ti-15V-3Al-3Cr-3Sn alloy (1000℃–30 min. and 500℃–30 min.) were processed according to the designed cyclic cathodic charging (at 50mA/cm2 for 1 hr and at 5mA/cm2 for 10 hrs) combining subsequent solution treatment to see the effect of various operating parameters on the microstructural change and hydrogen distribution. The variations of microstructure were investigated by employing metallographic optical microscopy (MOM) and X-Ray diffractometry (XRD) and The variations of mechanical property were investigated by employing Vickers micro-hardness test and Reciprocating wear test. The designed processing led to lattice dilatation and changes in microstructure at the near surface and a significantly enhance the hardness and strength. The α-solution treatment of Ti-15V-3Al-3Cr-3Sn alloy has a better hydrogenation ability and mechanical property. Cathodic charging at lower current density for longer operating period resulted in higher hydrogenation performance.
    Advisor Committee
  • Tair-I Wu - advisor
  • none - co-chair
  • none - co-chair
  • Files indicate not accessible
    Date of Defense 2010-06-18 Date of Submission 2010-07-07


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