1.宁波兴业盛泰集团有限公司 省级企业技术中心;2.北京有色金属研究总院 生物冶金国家重点实验室;3.北京有色金属研究总院 有色金属材料制备加工国家重点实验室
TG146.1
国家重点研发计划(项目号：2016YFB0301300),国家自然科学基金(项目号：51601017和51401026))
- Peng Lijun 1,2
- Ma Jimiao 1
- Liu Xingyu 2
- Liu Feng 1
- Huang Guojie 3
- Hong Songbai 1
- Xie Haofeng 3
- Liu Dongmei 3
1.NingBo XingYe Sheng Tai Group Co Ltd,Provincial enterprise technology center,Zhejiang,NingBo;2.State Key laboratory ofSbiological metallurgy,General Research Institute for Nonferrous Metals,Beijing
National Key R&D Program of China (2016YFB0301300)，National Natural Science Foundation of China (51601017 and 51401026)
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通过物理性能测试和采用扫面电子显微镜SEM、透射电子显微镜TEM、高分辨透射电子显微镜HRTEM等分析测试技术,系统研究不同处理工艺对Cu-Ni-Co-Si合金微观组织与性能的影响规律。研究结果表明,合金热轧在线淬火时效处理后,合金中存在大量的正交结构的大颗粒(Ni、Co)2Si相和少量、细小的(Ni、Co)2Si相,是导致合金综合性能无法满足后续使用的主要原因；经固溶时效和固溶冷变形时效处理后,合金的硬度与时效时间的关系曲线均呈单峰型,而合金的导电率与时效时间的关系曲线均呈先快速增加后缓慢增大最后趋于稳定的趋势；合金经固溶时效和固溶冷变形时效处理后,基体出现大量圆盘状的正交结构的(Ni、Co)2Si相,与基体的取向关系为 。
The influence of different treatment processes on microstructure and properties of Cu-Ni-Co-Si alloy were studied by scanning electron microscopy (SEM), transmission electron microscopy (TEM) and high resolution electron microscopy (HRTEM). The physical properties were tested as well. The results show that a large number of (Ni、Co)2Si large phases with orthorhombic structure and few of little (Ni、Co)2Si phase are found in the Cu-Ni-Co-Si alloy when the alloy is quenched on-line and aged treatment, which is ascribed to the low strength of the alloy. The relation curve between Vickers hardness and aging time exhibit a single peak and the electrical conductivity firstly rapid increase, then slowly raise, finally trended to stable as the aging time rise, when the Cu-Ni-Co-Si alloy is treated by solution and aging treatment and solution, cold deformation and aging treatment, respectively. Meanwhile, a lot of disc-shaped (Ni、Co)2Si precipitates with orthorhombic structure are found in the above condition. These precipitates with orientation relationship with Cu matrix could be analyzed as 。
引用本文
彭丽军,马吉苗,刘兴宇,刘峰,黄国杰,洪松柏,解浩峰,刘冬梅.不同处理工艺对Cu-Ni-Co-Si合金组织与性能的影响[J].稀有金属材料与工程,2019,48(6):1969~1974.[Peng Lijun, Ma Jimiao, Liu Xingyu, Liu Feng, Huang Guojie, Hong Songbai, Xie Haofeng, Liu Dongmei. Influence of different treatment processes on microstructure and properties of Cu-Ni-Co-Si alloy[J]. Rare Metal Materials and Engineering,2019,48(6):1969~1974.]
DOI：10.12442/j. issn.1002-185X.20170869
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- 收稿日期:2017-09-25
- 最后修改日期:2018-01-08
- 录用日期:2018-01-08
- 在线发布日期: 2019-07-26