分析了铝型材表面晶粒粗大的原因。
The cause of surface coarse grain of aluminium profile is analyzed.
试验结果表明该设备可以满足超声表面晶粒细化冲击的要求。
The results show that the instrument can reach the demand of ultrasonic peening grain refinement.
对比研究了铸造工艺参数对镍基高温合金叶片表面晶粒度和晶粒均匀度的影响。
Effects of the casting technological factors on the size and uniformity of surface grains of turbine blade castings in ni based superalloy were studied by comparison of experimental results.
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