预拉伸变形对欠时效7N01铝合金板材疲劳断裂的影响 |
田妮, 石旭, 刘威, 刘春城, 赵刚, 左良 |
Effect of Pre-Tension on the Fatigue Fracture of Under-Aged 7N01 Aluminum Alloy Plate |
TIAN Ni, SHI Xu, LIU Wei, LIU Chuncheng, ZHAO Gang, ZUO Liang |
图3 欠时效态7N01铝合金板材及其经不同程度预拉伸变形后的晶粒OM像(纵截面) |
Fig.3 OM images of grains of under-aged 7N01 aluminum alloy plate and after different pre-tensile deformations (along longitudinal section) that were observed by polarized light microscope (a) three-dimensional diagram, undeformed (b) undeformed (c) 3% (d) 5% (e) 8% (f) 12% (g) 16% (h) 20% |
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