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    Please use this identifier to cite or link to this item: http://chur.chu.edu.tw/handle/987654321/34929


    Title: AISI 304不銹鋼預置低溫環境後之靜態與疲勞強度實驗與分析
    Authors: 任貽明
    Jen, Yi-Ming
    Contributors: 機械工程學系
    Mechanical Engineering
    Keywords: 預置;低溫環境;靜態拉伸實驗;疲勞
    Pre-Stored;Low-Temperature Environment;Static Strength;Fatigue Strength
    Date: 2005
    Issue Date: 2014-06-27 03:12:51 (UTC+8)
    Abstract: 本文針對AISI 304不銹鋼試桿,在乾冰(-79℃)和液態氮(-79℃)的低溫環境下保存一星期後,當重新回復至正常室溫條件下時,從事靜態拉伸以及單軸向疲勞壽命實驗,並將實驗結果與一般放置室溫下之試桿比較。從靜態應力-應變曲線圖得知,預置低溫的試桿,其應變硬化及降伏強度均明顯提升。在動態疲勞破壞試驗的結果顯示,預浸乾冰和預浸液態氮試桿,除少數幾根在高應力區時的壽命稍長外,其餘的疲勞壽命均較室溫試桿低。在夾頭位移範圍與週次數關係圖上,試桿受動態潛變的影響,位移範圍均隨週次數的增加而加速上升。在相同應力振幅下
    Appears in Collections:[Department of Mechanical Engineering] Journal Articles

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