用纳米力学探针研究了氢对316不锈钢单晶纳米压痕蠕变的影响.结果表明,当可扩散氢浓度C0≥9.7×10-6后,原子氢能使室温饱和蠕变位移升高近一倍.室温除气后,其蠕变曲线和充氢前的曲线基本一致.这种可逆性表明,氢促进蠕变是由扩散氢引起的.当C0≥50.4×10-6后,在室温时效过程中会形成α'马氏体和微裂纹,α'马氏体的饱和蠕变量比奥氏体要小.当C0=174.4×10-6时,充氢过程中就出现α'马氏体,γ+α'复相组织的氢致蠕变位移升高明显比单相γ要小.
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