摘要
本文研究了铝锂合金在室温和液氮温度下的疲劳与断裂行为。结果表明,由于室温和低温下断裂模式不同,随温度降低合金的疲劳和断裂强度以及延性升高,特别是液氮温度下长寿命区的疲劳强度显著提高。
An investigation on the fatigue and fracture behavior of an Al-Li-Cu-Mg-Zr 8090-T6 alloy at room (300K) and liquid nitrogen (77K) temperatures has been conducted out. The fatigue and fracture strengths as well as ductilities of the alloy have been found to increase with decreasing temperature. The observations by SEM and TEM reveal that the changes in fatigue and fracture behavior with temperature are considered to associate with the change in the fracture mode.
出处
《材料工程》
EI
CAS
CSCD
北大核心
1990年第2期16-18,共3页
Journal of Materials Engineering
