Microstructure and mechanical characteristics of Cu-12.5Ni-5Sn-xFe sintered alloys
Microstructure and mechanical characteristics of Cu-12.5Ni-5Sn-xFe sintered alloys
复制标题
Cu-12.5Ni-5Sn-xFe 烧结合金的显微组织和力学性能
DOI：
10.1515/ijmr-2020-8002
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发表时间：
2021-02
影响因子：
0.8
通讯作者：
Yongzhen Zhang
中科院分区：
文献类型：
--
作者：
Xiaochao Wang;Zhen Li;Sanming Du;Jingbo Wang;Yongzhen Zhang
采用粉末冶金法制备了Cu-12.5Ni-5Sn-xFe合金。研究了Fe添加量对Cu-12.5Ni-5Sn-xFe合金显微组织和力学性能的影响。利用X射线衍射仪、扫描电镜和冷场发射扫描电镜对合金的微观组织和形貌进行了分析。结果表明，微量Fe的加入提高了Cu-12.5Ni-5Sn合金的硬度和屈服强度。与Cu-12.5Ni-5Sn合金相比，Cu-12.5Ni-5Sn-xFe合金的层状析出相更多、更细小。Fe能促进时效过程，强化时效硬化效果。
Abstract The Cu-12.5Ni-5Sn-xFe alloys were prepared using powder metallurgy. The effect of the amount of Fe addition on the microstructure and mechanical characteristics of Cu-12.5Ni-5Sn-xFe alloys was investigated. The microstructure and morphology of alloys were examined by means of X-ray diffraction, scanning electron microscopy and cold field emission scanning electron microscope. Results indicate that the hardness and yield strength of the Cu-12.5Ni-5Sn alloy are improved by addition of trace amounts of Fe. The lamellar precipitates of Cu-12.5Ni-5Sn-xFe alloys are more and finer compared to those of Cu-12.5Ni-5Sn alloy. Fe can facilitate the aging process and strengthen the effect of aging-hardening.