Abstract The cryomilling induced microstructure evolution of the heterogeneous Mg-based nanocomposites (5 vol% SiC nanocomposites) was investigated. The strength and malleability/toughness of nanocomposites were increased simultaneously due to the optimized microstructure when extending the milling time, and it broke the conflicts between strength and toughness in Mg-based composites. The strength and malleability/toughness were affected by the crystalline orientation and the thickness of flake-like soft region. It demonstrated the unique heterogeneous structure design is an attractive approach to synthesize high performance Mg-based nanocomposites.

中文翻译：

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具有同时提高的强度和韧性的非均质镁基纳米复合材料

摘要 研究了非均质 Mg 基纳米复合材料（5 vol% SiC 纳米复合材料）的低温铣削引起的微观结构演变。随着球磨时间的延长，纳米复合材料的强度和延展性/韧性同时得到提高，从而打破了镁基复合材料强度和韧性之间的矛盾。强度和延展性/韧性受晶体取向和片状软区厚度的影响。它证明了独特的异质结构设计是合成高性能镁基纳米复合材料的一种有吸引力的方法。