利用真空电弧炉熔炼CuAgAlFeNi高熵合金.分析表明:合金由FCC+ BCC相组成.合金中存在的严重的密度偏析,导致合金的铸态组织分为亚共晶层和固溶体层.亚共晶层由固溶少量Al的初晶Ag和(Cu-Ag)共晶组成.固溶体层则由Al、Fe、Ni和少量Cu形成的固溶体胞晶组成,在胞晶中还存在着与亚共晶层组织相同、成分相近的“共晶球”.固溶体的硬度为HK452.2,共晶层的熔点为805℃,硬度为HK160.4.
参考文献
| [1] | 张勇.非晶和高熵合金[M].北京:科学出版社,2010:67. |
| [2] | Zhou Y J;Zhang Y;Wang Y L et al.Microstructure and compressive properties of multicomponent Alx (TiVCrMnFeCoNiCu)100-x high-entropy alloys[J].MATERIALS SCIENCE & ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2007,454:260. |
| [3] | Zhou YJ;Zhang Y;Wang YL;Chen GL .Solid solution alloys of AlCoCrFeNiTix with excellent room-temperature mechanical properties[J].Applied physics letters,2007(18):181904-1-181904-3-0. |
| [4] | Li C;Li J C;Zhao M et al.Effect of alloying elements on microstructure and properties of multiprincipal elements high-entropy alloys[J].Journal of Alloys and Compounds,2009,475(1):752. |
| [5] | Zhang Y;Chen G L;Gan C L .Phase change and mechanical behaviors of TixCoCrFeNiCu1-y Aly high entropy alloys[J].J ASTM Int,2010,7(5):102527. |
| [6] | Lin C;Tsai H;Bor H .Effect of aging treatment on microstructure and properties of high-entropy Cu0.5 CoCrFeNi alloy[J].INTERMETALLICS,2010,18(6):1244. |
| [7] | Yeh J W .Recent progress in high-entropy alloys[J].Ann Chim Sci Mater,2006,31:633. |
| [8] | Singh S;Wanderka N;Murty B S et al.Decomposition in multi-component A1CoCrCuFeNi high-entropy alloy[J].Acta Materialia,2011,59(1):182. |
| [9] | Yang X;Zhang Y;Liaw P K .Microstructure and compressive properties of NbTiVTaAlx high-entropy alloys[J].Procedia Eng,2012,36:292. |
| [10] | Yong Zhang;Yun Jun Zhou;Jun Pin Lin;Guo Liang Chen;Peter K. Liaw .Solid-Solution Phase Formation Rules for Multi-component Alloys[J].Advanced Engineering Materials,2008(6):534-538. |
| [11] | Yang X;Zhang Y .Prediction of high-entropy stabilized solid solution in multi-component alloys[J].Mater Phys Chem,2012,132(2):233. |
| [12] | Handbook Committee.ASM handbook,vol.3.ASM international[M].OH:Metals Park,1992 |
| [13] | de Boer F R;Boom R;Mattens W C M.Cohesion in metals[M].Netherlands:Elsevier Science Publishing Company,1989 |
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