在 Xinjiang 土壤答案的 X-70 管道钢的混合模式 I/II SCC 行为用在实验室在反对称、对称的四点的弯曲配置装载的单个边槽口标本被调查。结果证明一个最大的张力的压力标准在近中立的 pH 答案,和混合模式 TGSCC 为 X-70 管道钢的混合模式 I/II SCC 提供好描述裂缝生长率比模式的大我 TGSCC。裂缝生长率的大小增加随装载的模式 II 的增加减少。
The mixed mode Ⅰ/Ⅱ SCC behavior of X-70 pipeline steel in the Xinjiang soil solution was investigated using single edge-notched specimens loaded in anti-symmetric and symmetric four-point bending configurations in laboratory. The results show that a maximum tensile stress criterion provides a good description for the mixed mode Ⅰ/ⅡSCC of X-70 pipeline steel in the near neutral pH solution, and the mixed mode TGSCC crack growth rate is larger than that of the mode Ⅰ TGSCC. The magnitude increase of the crack growth rate decreases with the increase of the mode Ⅱ loading.