Unified evaluation of hydrogen-induced crack growth in fatigue tests and fracture toughness tests of a carbon steel
Unified evaluation of hydrogen-induced crack growth in fatigue tests and fracture toughness tests of a carbon steel
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DOI：
10.1016/j.ijfatigue.2017.06.006
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发表时间：
2017-10-01
影响因子：
6
通讯作者：
Matsuoka, S.
中科院分区：
文献类型：
--
作者：
Ogawa, Y.;Matsunaga, H.;Matsuoka, S.
为了研究氢对碳钢整个疲劳寿命内疲劳寿命特性和裂纹扩展行为的影响，在0.7和115 MPa压力的氢气环境中进行了拉压疲劳试验和弹塑性断裂韧性试验。疲劳试验表明，疲劳寿命和断裂形貌随氢气压力变化很大。这项研究表明，这种差异可以通过不同压力下氢气中疲劳裂纹扩展特性和断裂韧性特性的结合来解释。 (C) 2017 Elsevier Ltd. 保留所有权利。
To investigate the effect of hydrogen on fatigue life characteristics and crack growth behaviors through the entire fatigue life of a carbon steel, tension-compression fatigue tests and elasto-plastic fracture toughness tests were conducted in a hydrogen gas environment under the pressures of 0.7 and 115 MPa. The fatigue tests revealed that the fatigue life and fracture morphology vary drastically with the hydrogen gas pressure. This study demonstrates that such differences can be explained by the combination of fatigue crack growth properties and fracture toughness properties in hydrogen gas at each pressure. (C) 2017 Elsevier Ltd. All rights reserved.