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不同厚度国产X100高钢级管线钢的断裂韧性

Fracture Toughness of Domestic X100 High Strength Linepipe Steel with Different Thicknesses

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【Author】 MA Qiu-rong1,2,ZHANG Teng2,LI He1,LIU Xiao-feng3(1.CNPC Tubular Goods Research Institute,Xi′an 710065,China;2.School of Materials Science and Engineering, Xi′an Jiaotong University,Xi′an 710049,China;3.Third Engineering Company of China Petroleum Pipeline Bureau,Zhongmu 451450,China)

【机构】中国石油集团石油管工程技术研究院；西安交通大学材料科学与工程学院；中国石油天然气管道局第三工程分公司；

【摘要】采用裂纹尖端张开位移(CTOD)试验对不同厚度X100管线钢的断裂韧性进行了研究,探讨了试样厚度对断裂韧性特征值δ0.2的影响。结果表明:厚度为12,10,8mm的X100管线钢的断裂韧性特征值δ0.2分别为0.323,0.267,0.265mm;对管线钢进行CTOD测试时,所取试样的厚度应与实际钢管的壁厚相当。更多还原

【Abstract】 The fracture toughness of X100 linepipe steel with different thicknesses was studied by crack tip opening displacement(CTOD) test,and the effect of the sample thickness on crack initiation value δ0.2 was discussed.The results show that crack initiation value δ0.2 of X100 linepipe steel with thicknesses of 12,10,8 mm were 0.323,0.267,0.265 mm,respectively.The thickness of the sample used during CTOD testing should be equivalent with the wall thickness of actual steel pipe.更多还原

【关键词】 X100管线钢；断裂韧性；厚度；
【Key words】 X100 linepipe steel； fracture toughness； thickness；

【文献出处】机械工程材料 ,Materials for Mechanical Engineering , 编辑部邮箱 ,2013年03期

【分类号】TG142.4
【被引频次】8
【下载频次】220

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