...劳性能，细晶组织，冲击韧性 [gap=1013]Key Words：GH4169 alloy, high-cycle fatigue properties, fine grains microstructure, impact toughness ...
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超细晶组织 ultrafine-grained microstructures
It is means that sharp upturn of toughness is concerned with inclusion cracking for fine grain microstructure and fracture toughness is concerned with carbide for coarse grain microstructure.
反映了细晶组织的韧性陡升与夹杂物开裂有关,粗碳化物组织的断裂韧性与碳化物有关。
参考来源 - 低合金钢在不同低温下解理断裂机理的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
结果表明，强化层是由细晶组织和非晶组织组成的合金层。
The results show that the strengthened layers are alloy coatings which consist of fine crystalline structure and non-crystalline.
等径弯曲通道变形（简称ECAP）具有获得超细晶组织和改善力学性能的潜力。
The equal-channel angular pressing (ECAP) had achieved the potential for obtaining ultra-fine grain and improving mechanical properties.
检测结果表明，试样均为超细晶组织，其显微硬度为原始硬度的1.5～1.8倍。
The structures of the samples are ultra-fine-crystalline structures and their hardness are 1.5 to 1.8 times as the originals.
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