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Student Number 963203038
Author Yi-De Wu(吳奕德)
Author's Email Address No Public.
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Department Mechanical Engineering
Year 2008
Semester 2
Degree Master
Type of Document Master's Thesis
Language zh-TW.Big5 Chinese
Title The affect of AAO film in AA5052-H32 during different rolling and annealing procedure
Date of Defense 2009-07-07
Page Count 69
Keyword
  • AAO film
  • annealing
  • rolling
  • Abstract As the high specific strength and high corrosion resistance, aluminum alloy is well used in many industry field, ex: 3C product and auto mobile component.
      Aluminum alloy have different microstructure and texture in different procedure, like rolling or extrusion processes, the dislocations bring from the procedure will disperse in different anneal condition, to following the recovery, recrystallization and grain growth, make the grain boundaries to form high angle or low angle.
      Aluminum-Magnesium alloy possession a work hardening property, because of the stacking fault energy in magnesium is lower than aluminum, it’s will bind the dislocations and block to cross slip or climb, therefore, the more working ratio, the more strength.
      This study using the 5052-H32 as the material, observation the relationship between substrate and AAO film in different working and annealing condition, moreover, monitoring the V-t curve to observation the AAO properties. When annealing and rolling condition changed, the film thickness and color will different, following affected the AAO film chemical composition.
    Table of Content 摘要.....................................................I
    Abstract................................................II
    第一章 前言..............................................1
    第二章 文獻回顧..........................................2
    2-1 輥軋(rolling)簡述....................................2
    2-2 織構(texture)........................................2
    2-2-1 輥軋及退火的織構...................................2
    2-2-2 織構對陽極皮膜的影響...............................5
    2-2 鎂對結構造成的影響...................................8
    2-2-1 添加鎂對鋁合金的影響...............................9
    2-2-2 加工溫度對鋁鎂合金的影響...........................9
    2-3 差排與高低角度晶界..................................12
    2-3-1 差排(dislocation).................................12
    2-3-2 差排圈(dislocation loop)與差排胞(dislocation cell)14
    2-3-3 高低角度晶界......................................15
    2-4 表面處理............................................19
    2-4-1 陽極處理..........................................19
    2-4-3 陽極皮膜的種類....................................20
    2-4-4 多孔型陽極皮膜的生成機制..........................20
    2-4-2 鋁陽極皮膜的應用..................................21
    2-4-5 鋁陽極皮膜生成的電壓-時間曲線(V-t curve)..........22
    2-4-6 鎂在鋁中對陽極電壓時間曲線之影響..................24
    2-4-7 陽極電流對鋁鎂陽極皮膜之影響......................25
    第三章 實驗方法與步驟...................................29
    3-1 實驗材料............................................29
    3-2 實驗儀器............................................29
    3-3 實驗步驟............................................30
    第四章 結果與討論.......................................34
    4-1 輥軋對基材產生的變化................................34
    4-1-1 輥軋對晶粒型態的影響..............................34
    4-1-2 退火時間對晶粒型態的影響..........................35
    4-1-3 輥軋對差排的影響..................................39
    4-1-4 輥軋及退火對晶界角度(grain boundary angle)的影響..39
    4-1-5 輥軋及退火對導電度的影響..........................40
    4-1-6 輥軋及退火對硬度的影響............................41
    4-2 輥軋及退火對陽極的影響..............................42
    4-2-1 鎂含量對陽極電壓-時間曲線的影響...................42
    4-2-2 輥軋對陽極電壓-時間曲線的影響.....................43
    4-2-3 差排對陽極處理的影響..............................45
    4-2-4 退火對陽極電壓-時間曲線的影響.....................46
    4-2-5 陽極皮膜色澤的變化................................49
    4-2-6 長時間陽極對陽極皮膜的影響........................49
    第五章 結論.............................................51
    參考文獻................................................52
    附錄....................................................56
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    Advisor
  • Teng-Shih Shih(施登士)
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    Date of Submission 2009-07-30

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