Aluminium alloys have been widely used in aeronautical engineering due to the advantages of high strength and easy processing. Low temperature is an inevitable environmental factor in using of aluminium alloys, and the cryogenic fatigue of aeronautic aluminium alloys has been greatly concerned by the engineering and academics overseas and domestically. The experiment researches on cryogenic fatigue of aeronautic aluminium alloys in recent years were generally reviewed here, meanwhile, the cryogenic fatigue failure mechanisms were analyzed. After that, the characterization model and life evaluation methodology on cryogenic fatigue of aeronautic aluminium alloys were summarized, and further research problems in experiment, failure mechanism, characterization model and life prediction were pointed out, which provides a technical support for engineering design and application of aeronautic aluminium alloys.
作者简介: 刘牧东:博士,工程师,研究方向为直升机结构疲劳和损伤容限设计。
引用本文:
刘牧东. 航空铝合金材料低温疲劳研究进展[J]. 航空制造技术, 2019, 62(15): 93-100.
LIU Mudong. Research Progress on Cryogenic Fatigue of Aeronautic Aluminium Alloy. Aeronautical Manufacturing Technology, 2019, 62(15): 93-100.