未经扩氢退火的电渣钢大锻件经超声波检验，未发现白点缺陷。
Ultrasonic testing shows on flake defects in theheavy forgings of ESR steel without any diffusion annealing.
研究了车轮钢中白点形成的机理以及白点对断口形貌的影响。
The mechanism of flaking in wheel steel and the effects of flaking on fracture were investigated.
钢中的白点能增加疲劳扩展速率并使扩展速率发生波动。
The flaking do increases and undulates the fatigue crack growth rate.
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