Al-Cu-Mg-Ag合金是在Al-Cu-Mg系合金基础上开发的新型合金.根据成分的不同,该合金的常见析出相有θ′、S′和Ω相,其中在基体{111}面析出的Ω相具有较高的沉淀硬化能力和热稳定性,使得Al-Cu-Mg-Ag成为一种新型中温高强铝合金.在简要介绍该合金研究过程的基础上,回顾该合金强化相的相组成、相的析出序列和热稳定性;同时总结以Ω相为主要强化相的合金体系合金化研究进展;并对该合金的研究方向进行展望.
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