It is simple and reliable that DWTT result judge high stress and high toughness pipeline.

落锤撕裂试验(DWTT)作为一种比较可靠的高强度高韧性管线钢的断裂判据,简单可靠.

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Causes of DWTT specimen failure for medium thickness pipe are material brittleness addition and V - shape nick.

简单分析了中厚壁钢管产生DWTT无效试样的原因是材料脆性增加和试样V形缺口.

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