High density stacking faults of ■ compression twin in magnesium alloys
来源期刊：JOURNAL OF MATERIALS SCIENCE TECHNOLOG2019年第10期
论文作者：Bo Zhou Manling Sui
文章页码：2263 - 2268
摘 要：■ compression twins with high density stacking faults were studied at atomic scale using Cscorrection transmission electron microscopy. On one side of the ■ twin boundary, there were many steps arranged alternately with the coherent twin boundaries. Most of the steps were linked with stacking faults inside twins. Burgers vector of twinning dislocations and the mismatch strain at steps were characterized. Due to the compressive mismatch strain at steps, the high density stacking faults inside twins were formed at twin tips during twinning process. The localized strain at the steps would be related to the crack nucleation in magnesium alloys.
Bo Zhou，Manling Sui
Beijing Key Laboratory of Microstructure and Properties of Solids, Institute of Microstructure and Properties of Advanced Materials, Beijing University of Technology
摘 要：■ compression twins with high density stacking faults were studied at atomic scale using Cscorrection transmission electron microscopy. On one side of the ■ twin boundary, there were many steps arranged alternately with the coherent twin boundaries. Most of the steps were linked with stacking faults inside twins. Burgers vector of twinning dislocations and the mismatch strain at steps were characterized. Due to the compressive mismatch strain at steps, the high density stacking faults inside twins were formed at twin tips during twinning process. The localized strain at the steps would be related to the crack nucleation in magnesium alloys.
关键词：
