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图8 不同时效态样品在1 mol/L NaOH溶液中电化学腐蚀形貌

Fig.8 Electrochemical surface morphologies of samples with different aging states in 1 mol/L NaOH solution: (a) UT, (b) AT-200, (c) AT-300, (d) AT-500, (e) AT-700