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通过对目前我国大量使用的抽油杆材料20CrMo钢在NaCl和CO_2介质中腐蚀后裂纹动态形核及扩展机制的试验观察,揭示了抽油杆在含这类介质条件下使用的失效原因,为防止抽油杆失效提供了理论依据。
Through the experimental observation on the dynamic nucleation and propagation mechanism of the 20CrMo rod superalloy after corrosion in NaCl and CO_2, which is widely used in our country, the reasons for the failure of sucker rod under the condition of containing such medium are revealed Provide a theoretical basis for preventing sucker rod failure.