...韧窝断口;三维形貌;改进立方体覆盖法;分形维数 [gap=1377]Keywords : white light phase-shifting interference;dimple fracture;three-dimensional topography;improved cubic covering method;fractal dimensionzz..
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...dimple fracture; brittle fracture; expendable pattern shell [gap=18797]关键词：A356；微观组织；拉伸性能；断口表面；韧窝断裂；脆性断裂；消失模壳型铸造 ...
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韧窝断裂 金属多晶材料的断裂，通过空洞核的形成长大和相互连接的过程进行,这种断裂称为韧窝断裂(dimple fracture)韧窝断裂是属于一种高能吸收过程的延性断裂。
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High manganese steels undergo a ductile to brittle transition at low temperature, which is accompanied by a change in the fracture mechanism from dimple fracture to intergranular fracture.
高锰奥氏体钢随温度降低其断裂机制由韧窝状断裂转变到晶界断裂。
The tensile fracture of 3j21 alloy is a dimple fracture at peak-aged state. The distance between the slip lines is larger in the microstructure near the fracture of the alloy at under-aged state.
峰时效态3 J 21合金的拉伸断口为韧窝断口，断口附近显微组织中滑移线之间的距离大。
The fractures of the alloys change from dimple to cleavage fracture with river pattern.
合金的断口形貌由韧窝向河流花纹状的解理形貌转变。
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