④微裂缝/微空隙形成（Microfissuring/Microvoid Formation）⑤金相组织改变（Metallurgical Changes） ⑥尺寸改变（Dimensional Changes）
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并藉著板厚的改变探讨其对热影响区之金相组织与硬度造成之影响。
Next, consider the effect of the thickness of plates on the microstructure and hardness in HAZ.
③井下发生燃爆，会改变下部钻具表面的金相组织，加速了腐蚀和疲劳裂纹萌生、扩展；
Burning underground will change the surface of microstructure of BHA, and accelerate corrosion and fatigue crack initiation and propagation;
作者通过改变固溶热处理条件并结合金相组织观察和断口分析研究了强化固溶对提高70 5 5铝合金力学性能的作用。
The effects of promotively solutionizing of soluble remaining constituent phases on the microstructure and mechanical properties of 7055 alloys were studied.
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