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本文介绍了对九江长江大桥鋼结构基材15MnVN在低温-110℃~-140℃下,以三点弯曲大试件测定其平面应变断裂韧性K_(IC)的研究结果。
In this paper, the results of the study on the plane strain fracture toughness K IC of 15MnVN steel substrate for Jiujiang Changjiang River Bridge at low temperature -110 ℃ ~ -140 ℃ are described by three-point bending test.