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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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氢对22-13-5不锈钢室温下力学行为的影响
DOI: 10.11858/gywlxb.1994.02.005, PP. 113-124
Keywords: 氢,瞬态蠕变,可动位错密度,硬化和软化
Abstract:
22-13-5钢是一种高强度极稳定的奥氏体不锈钢，将它置于10MPa（100个大气压）纯氢气中在300℃充氢14天，含氢量为65±1ppm。室温下力学性能测试表明：充氢后钢的强度提高，塑性指标不变；但室温下瞬态蠕变和短期应力弛豫行为，在可比条件下，变得更为强烈。用Alden的可动位错密度理论，对实验结果作了定性分析，并对瞬态蠕变结果进行了定量的计算。结果证明，氢原子阻碍位错运动，使材料强度增加，同时也使材料的粘滞性增大。
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