| 添加Mn对激光制备Al_(1.3)FeCoNiCuCr涂层组织和性能的影响 | |
| 彭存远 ; 马明星 ; 叶晓阳 ; 吴绮雯 ; 张伟明 ; 刘文今 ; Peng Cunyuan ; Ma Mingxing ; Ye Xiaoyang ; Wu Qiwen ; Zhang Weiming ; Liu Wenjin | |
| 2016-03-30 ; 2016-03-30 | |
| 关键词 | 高熵合金 激光熔覆 组织结构 添加元素Mn high-entropy alloy laser cladding microstructure addition element Mn TG174.4 |
| 其他题名 | The Effect of Mn Contents on the Microstructure and Properties of the HEA Alloy Produced by Laser Cladding |
| 中文摘要 | 通过预置法实现在921A钢上激光熔覆制备高熵合金Al1.3FeCoNiCuCr涂层,研究了以Mn为杂质元素时,不同添加量对高熵合金组织、相结构和性能的影响。结果表明,单纯Al1.3FeCoNiCuCr微观组织为简单的枝晶组织,涂层仅由bcc相和fcc相组成,没有金属间化合物。随着Mn的增加,Al、Ni和Cu的含量相应提高,Fe和Cr的含量则逐渐降低,总体趋向于更加接近设计的成分;和所有其它元素不同之处是,Al明显偏析于枝晶内。XRD分析发现,bcc相的相对强度随Mn的增加而下降,当Mn添加量达到w(Mn)=3%时,bcc相基本消失。此外,Al1.3FeCoNiCuCr涂层显微硬度随着Mn含量的增加小幅降低,当Mn添加量由0增加到w(Mn)=4%时,其平均显微硬度由HV0.2 581逐渐降低到HV0.2 547。; Al1.3FeCoNiCuCr HEA coatings are produced by pre-placed laser cladding on 921 A steel substrate.The effect of Manganese(Mn)contents on the metallography,phase structure and properties of the HEA alloy is investigated.The experiments results showed that:The microstructure of Al1.3FeCoNiCuCr is composed of dendrite and inter-dendrite,and the microstructure only consists of fcc and bcc phases.With the increase of the Mn,the content of Al,Ni and Cu increase,while the content of Fe and Cr decrease,the various elements tend to more uniformly.Segregation of Aluminum(Al)is observed.With the increase of Mn,the fcc phase increases and the bcc phase decreases relatively.When the Mn increases to 3wt.%,the bcc phase basic disappears.Al1.3FeCoNiCuCr coatings have high micro-hardness.The micro-hardness decreases from HV0.2 581 to HV0.2 547 with the increase of Mn from 0 to 4wt.%. |
| 语种 | 中文 ; 中文 |
| 内容类型 | 期刊论文 |
| 源URL | [http://ir.lib.tsinghua.edu.cn/ir/item.do?handle=123456789/144438]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | 彭存远,马明星,叶晓阳,等. 添加Mn对激光制备Al_(1.3)FeCoNiCuCr涂层组织和性能的影响[J],2016, 2016. |
| APA | 彭存远.,马明星.,叶晓阳.,吴绮雯.,张伟明.,...&Liu Wenjin.(2016).添加Mn对激光制备Al_(1.3)FeCoNiCuCr涂层组织和性能的影响.. |
| MLA | 彭存远,et al."添加Mn对激光制备Al_(1.3)FeCoNiCuCr涂层组织和性能的影响".(2016). |
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