金屬異材銲接結構在變動負荷下之疲勞壽命研究;Fatigue life of the dissimilar metal weldment under variable loads

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Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/73620

Title:	金屬異材銲接結構在變動負荷下之疲勞壽命研究;Fatigue life of the dissimilar metal weldment under variable loads
Authors:	黃俊仁
Contributors:	國立中央大學機械工程學系
Keywords:	核能一級組件;疲勞壽命;異材銲接;Nuclear Class-1 Component;Fatigue Life;Dissimilar Weld;機械工程;材料科技
Date:	2016-12-31
Issue Date:	2017-08-02 12:08:55 (UTC+8)
Publisher:	行政院原子能委員會
Abstract:	本研究以核能電廠常用的A508 class 2低合金鋼和SS304L不銹鋼之異材銲接件為對象，探討其金相組織、拉伸強度、硬度分佈及衝擊值。建立其52M鎳基合金銲道之疲勞應力-壽命線、平均應力修正方式及瞭解疲勞損壞機制。研究結果顯示在核能組件設計所承受的暫態負荷歷程下，疲勞壽命預測以採用Goodman平均應力修正模式為最佳。疲勞裂縫延伸機制主要為疲勞紋方式。4小時與8小時的銲後退火對於銲件的機械性質影響不大。 ;This study investigated the microstructures, tensile strength, hardness distribution, impact energy and fatigue properties of a dissimilar metal weldment. Base metals of the weldment were A508 class 2 low-alloy steel and SS304L stainless steel. Multip;研究期間：10509 ~ 10512
Relation:	財團法人國家實驗研究院科技政策研究與資訊中心
Appears in Collections:	[Departmant of Mechanical Engineering ] Research Project

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