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Tensile and Fracture Toughness Behaviour of the Dissimilar Metal Weld Joints

机译：不同金属焊接接头的拉伸和断裂韧性行为

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The aim of the paper is to understand and quantify the tensile and fracture behaviour of the each regions of the dissimilar metal weld. Full scale forged pipe of SA508 Grade 3 Class 1 and SS 304LN has been welded using the Inclonel 82 filler (buttering and root pass welding) and the Inconel 182 (filling passes). Tensile and fracture toughness tests Specimens were machined from the actual pipe weld. Tensile test results indicated that the percentage elongation of the buttering region is lowest in comparison to other regions. Strength of this region is comparable to that of low alloy steel. Fracture toughness tests results indicate the buttering region has lowest fracture resistance which is in consistence with lowest toughness from the tensile test results.
机译：本文的目的是理解和量化不同金属焊缝的每个区域的拉伸和断裂行为。 SA508级别3级和SS 304LN的全尺寸锻造管用包括82填充物（涂油和根通过焊接）和INCONEL182（填充通辗）焊接。拉伸和断裂韧性试样由实际管道焊接加工。拉伸试验结果表明，与其他地区相比，稀释区的百分比伸长率最低。该地区的强度与低合金钢的强度相当。断裂韧性试验结果表明，黄油区域具有最低的断裂抗性，其与来自拉伸试验结果的最低韧性一致。

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