本文采用悬臂弯曲预裂纹试样应力腐蚀试验方法和紧凑拉伸试样恒载荷法测定了50Mn18Cr40WN奥氏体钢在含C1-和NO3-的水溶液中应力腐蚀以及电解充氢条件下氢致开裂的门槛值,并对应力腐蚀和氢致开裂的裂纹走向与断口形貌进行了观察.50Mn18Cr4WN钢在含C1-和NO3-的水溶液中均能产生应力腐蚀开裂,且在含NO3-的水溶液中比在含C1-的水溶液中应力腐蚀敏感性大.在电解充氢条件下,50Mn18Cr4WN钢也能产生氢致开裂.
The threshold values of SCC in chloride and nitrate aqueous solutions and HIC under dynamical hydrogen charging for steel 50Mnl8r4WN were determined using pre-cracked cantilever bend specimens and compact tension specimens.Observations of crack propagatio
参考文献
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| [2] | ．SpeidelM．O．andAtrensA．,CorrosioninPowerGeneratingEquipment,NewYork,Plenum,1984:427．2．NesbittJ．andBatteA．D．mMetalsTechnolgy,1982 |
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