如何使合金兼具高强度与高塑性

马恩, 刘畅

Achieving Alloys with Concurrent High Strength and High Ductility

MA En (MA Evan), LIU Chang

图3 以化学/结构异质性提供强化和应变硬化机制的几个典型案例：bcc合金中的类B2局域化学序[19]，纳米尺度成分起伏[26]，高密度、大体积分数纳米析出相[27]，及具有纳米尺度无序界面的金属间化合物[28]

Fig.3 Several typical cases of chemical/structural heterogeneities that offer mechanisms for strengthening and strain hardening (a-c) local chemical order (LCO)[19] (dbcc—spacing of the {001} planes in the bcc lattice, dLCO—spacing of the extra LCO) (d) nanoscale compositional undulation[26] (e) high-volume-density of nanoprecipitation[27] (f) intermetallic precipitate with nanoscale disordered interface[28]