2219-T852铝合金锻件的显微组织与力学性能
Heat Treatment of Metals(2017)
Abstract
采用拉伸力学试验、光学显微镜、扫描电镜以及透射电镜分析手段,研究2219-T852合金锻件的显微组织与力学性能.结果表明:锻件变形比较充分和均匀, θ′强化相细小分布弥散,纵向力学性能满足AMS 4144F-2011的要求,横向和高向的力学性能优于美国标准的要求;锻件的三向力学性能均满足σb≥400 MPa、σ0.2≥300 MPa、δ5≥5%,无明显的各项异性,有利于其在多向承载结构件中的应用.
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