But the alloy has worse room temperature plasticity, ductility and shows cleavage fracture both in casting and heat treatment.
但是,无论是铸态下,还是热处理态下,其室温塑性较差,具有室温脆性;其断裂为脆性解理断裂。
参考来源 - FeAs result ,the critical event of the cleavage fracture changes from the initiation controlled to the propagation controlled due to second phase or inclusion-sized micro-crack as well as ferrite grain-size micro-crack.
因此解理断裂的临界事件随温度的升高发生由成核控制(起裂控制),第二相、夹杂物尺寸微裂纹扩展控制和铁素体晶粒尺寸微裂纹扩展控制的转变。
参考来源 - 压力容器用钢在不同温度下断裂行为的研究·2,447,543篇论文数据,部分数据来源于NoteExpress
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