郭嘉成,杨欣宇,唐伟能

• 1:宝钢金属有限公司

摘要(Abstract)：

镁基储氢材料因其高储氢容量、资源丰富、成本低成为氢能存储核心候选材料，但其规模化生产中的成分偏析、加工难及安全性问题制约产业化。本文针对Mg-Ni-Y合金，开发“规模化熔炼-精密切削-冷压成型”一体化工艺，探究了制备工艺对材料结构与储氢性能的影响规律。200 kg级熔炼制备的铸锭成分偏差≤0.5%，氮气保护下精密切削成0.1, 0.2和0.5 mm薄片，再冷压成块体。350℃吸放氢测试结果显示：0.1 mm薄片储氢密度为5.7%，接近同等成分～180μm粉末的6.0%，且规避粉末氧化、运输安全风险，兼具可卷绕、易压制成型的优势；压制块体初始储氢密度5.4%, 100次循环后仍存5.13%（衰减率为5%）。本文突破Mg-Ni-Y材料“高性能与规模化生产”协同瓶颈，制备的薄片与块体兼具优异储氢性能和稳定量产能力，推动镁基储氢材料工程化应用。

关键词(KeyWords)： Mg-Ni-Y储氢合金;储氢性能;薄片;块体

Abstract:

Keywords:

基金项目(Foundation): 国家重点研发计划项目（2023YFB3809102）;; 宝武集团重点研发项目（R25BGJS010-J）资助

作者(Author): 郭嘉成,杨欣宇,唐伟能

DOI: 10.13373/j.cnki.cjrm.XY25080013

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