氧化铍对铍材微屈服强度的影响

1.西北稀有金属材料研究院,石嘴山,753000

2.西北稀有金属材料研究院,石嘴山,753000

3.西北稀有金属材料研究院,石嘴山,753000

4.西北稀有金属材料研究院,石嘴山,753000

5.西北稀有金属材料研究院,石嘴山,753000

基金项目: 国家自然科学基金(59 764 002)

Influence of BeO on Microyield Strength of Beryllium Material

用粒度相同、不同BeO含量的铍粉开展了BeO对铍材微屈服强度(σmys)的研究;结果发现,与BeO含量相比,BeO在铍中的分布状态对σmys的影响更大.在晶界及晶内较细小弥散分布的BeO对基体铍有弥散强化作用,使σmys较高;如果BeO较粗大地成簇状聚集在晶界,反而对σmys有不良的影响.

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