热冲击疲劳裂纹的形成与微孔洞的形核、长大和连通有关。
The crack formation of thermal shock fatigue is related to the nucleation, growth and join of microvoid.
氮化钛膜层表面呈胞状结构生长，膜层结构致密，未见显微孔洞和裂纹的存在。
The TiN surface film grow as cell-shaped structure and the film microstructure is compact.
同时研究发现了钢丝在拉拔方向上形成的以第二相硬质颗粒为核心的梭形微孔洞。
The results also presented that there were so many shuttle-shaped micro holes in this steel wires, lugging along drawing axis and cored by the hard particles.
研究结果表明，随钢组织在预加载荷中产生的微孔洞初始损伤量的增加，其延性起裂韧性降低。
The results showed that with increasing the amount of the initial void damage, the ductile fracture initiation toughness of steel decreases.
结果发现，TWIP钢具有典型的延性断裂断口特征，其变形和断裂过程为微孔洞的形核、长大和聚合。
It was found that the fracture of TWIP steel was typical ductile fracture pattern and its deformation and fracture processes were the formation, growth and coalescence of microvoids.
结果发现，twip钢具有典型的延性断裂断口特征，其变形和断裂过程为微孔洞的形核、长大和聚合。
It is found that the fracture of TWIP steel is typical ductile fracture pattern and its deformation and fracture mechanisms are the formation, growth and coalescence of micro-voids.
弹孔周围的绝热剪切带沿主剪应力方向形成，与静态塑性变形滑移线方向接近，绝热剪切带上不均匀的变形将产生微裂纹和微孔洞。
An adiabatic shear band formed along the main shear stress around the penetrated hole is approximately consistent with the direction of plastic deformation slip lines in static state.
并进一步对初始损伤孔洞在后续加载中的演化行为的细观有限元力学进行模拟计算及微孔洞初始损伤对钢的延性起裂韧性影响的机理进行了研究。
The mechanism of this effect was further investigated by using finite element method to simulate the evolution of pre-damage voids during the subsequent loading process.
并进一步对初始损伤孔洞在后续加载中的演化行为的细观有限元力学进行模拟计算及微孔洞初始损伤对钢的延性起裂韧性影响的机理进行了研究。
The mechanism of this effect was further investigated by using finite element method to simulate the evolution of pre-damage voids during the subsequent loading process.
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