However, stepped aging, which relaxes internal macro-stress under lower temperature then ages under higher temperature, can avoid longitudinal cracks effectively.
分级时效处理，低温下先让合金内部的宏观应力松弛，再在较高温度下时效，可有效地避免棒材纵向开裂。
The simulations replicate most of the phenomena observed in actual experiments, such as initiation and growth of wing and secondary cracks, crack coalescence, and the macro-failure of the sample.
模拟复制最实际的实验，如启动和增长的机翼和二次裂纹，裂纹贯通，宏观失败的样本中观察到的现象。
The simulations replicate most of the phenomena observed in actual experiments, such as initiation and growth of wing and secondary cracks, crack coalescence, and the macro-failure of the sample.
模拟复制最实际的实验，如启动和增长的机翼和二次裂纹，裂纹贯通，宏观失败的样本中观察到的现象。
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