把恒加载速率 载荷法 (const.P· P)和恒载荷法 (const.P)相结合 ,提出了一个稳态加载和长时间保载的纳米压痕蠕变试验新方法 .该方法不仅适用于高蠕变能力的低熔点材料 ,也适用于低蠕变能力和存在压痕尺寸效应的高熔点材料 .用该方法确定Cu的室温蠕变速率敏感指数m为 0 .0 1 ,并发现其值不受加载段所用的P· P值和达到的最大压入位移hmax的影响 A new method of nano-indentation creep testing under steady-state loading and long-time loading is proposed by combining constant load rate method (const.P.P.) and constant load method (const.P.) This method is not only applicable Low melting point material with high creep ability is also suitable for high melting point materials with low creep ability and indentation size effect.Using this method, the room temperature creep rate sensitivity index (m) of Cu is found to be 0.01, The value is independent of the P · P value used for the loading section and the maximum hitting displacement hmax achieved