对第二代镍基单晶高温合金进行表面处理并在1000～1200℃保温,研究表面加工工艺和热处理条件对胞状再结晶行为的影响.结果表明:磨削、吹砂、喷丸试样热处理后表面均发生了胞状再结晶,其生成厚度依次增加.喷丸试样经1200℃/50h后胞状再结晶区厚度可达0.1mm,晶团之间及与基体之间存在取向差小于5°的小角晶界和35～45°的大角晶界.热处理温度比保温时间对胞状再结晶区生长速率和最终厚度的影响更加显著.
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