纳米金属结构材料的韧化

赵永好, 毛庆忠

Toughening of Nanostructured Metals

ZHAO Yonghao, MAO Qingzhong

图7 粗晶(CG)固溶、液氮轧制(NS)、低温时效(NS + P) 7075铝合金的拉伸曲线,拉伸后析出相附近的位错积累,及拉伸前的纳米析出相[56]

Fig.7 Tensile curves of CG solid solution, liquid nitrogen rolling (NS), and low-temperature aging (NS + P) 7075 aluminum alloys (a), dislocation accumulation near the precipitated phase after tension (b-d), and nano-precipitated phase before tension (e-g)[56] (The inset shows dimension of the tensile sample with a thickness of 1 mm)