Austenite separates the martensite blocks or laths so that it can reduce the effective grain size and prevent cracks from propagating.
奥氏体组织分割了马氏体束或马氏体板条，减小了有效晶粒尺寸，阻止裂纹扩展，提高材料的韧性和塑性；
The mechanical property and the grain size of the steel ingot after smithing are ensured without generating a crackle during smithing by using a rational and effective smelting method.
采用合理、有效的冶炼方法保证钢锭锻造后力学性能、晶粒度及锻造时不产生裂纹。
The mechanical property and the grain size of the steel ingot after smithing are ensured without generating a crackle during smithing by using a rational and effective smelting method.
采用合理、有效的冶炼方法保证钢锭锻造后力学性能、晶粒度及锻造时不产生裂纹。
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