论文标题
部分可观测时空混沌系统的无模型预测
Radiation-resistant aluminium alloy for space missions in the extreme environment of the solar system
论文作者
论文摘要
对我们太阳系的未来基于人类的探索需要能够抵抗恶劣环境的材料。年龄耐年龄的铝合金将是长距离航天器中结构成分的有吸引力的候选者，但是它们对太阳能颗粒的耐辐射性不足。常见的硬化阶段溶解和位移损伤发生在合金基质中，该矩阵强烈降低了性能。在这里，我们提出了一种合金，其中T阶段实现了硬化，具有巨大的单位细胞和高度阴性的形成焓。该阶段显示了记录的辐射生存能力，并且可以在合金中的温度和辐射后稳定超细颗粒结构，从而成功防止发生位移损伤。这种概念可以被认为是下一代空间材料和耐辐射合金设计的理想选择。
Future human-based exploration of our solar system requires the invention of materials that can resist harsh environments. Age-hardenable aluminium alloys would be attractive candidates for structural components in long-distance spacecrafts, but their radiation resistance to solar energetic particles is insufficient. Common hardening phases dissolve and displacement damage occurs in the alloy matrix, which strongly degrades properties. Here we present an alloy where hardening is achieved by T-phase, featuring a giant unit cell and highly-negative enthalpy of formation. The phase shows record radiation survivability and can stabilize an ultrafine-grained structure upon temperature and radiation in the alloy, therby successfully preventing displacement damage to occur. Such concept can be considered ideal for the next-generation space materials and the design of radiation resistant alloy.
