以Cu、Cr和稀土粉末为原料,采用机械合金化法制备Cu-15wt%Cr和Cu-15wt%Cr-RE复合粉末.利用X射线衍射仪、扫描电镜研究了球磨过程粉末的显微组织结构,测量不同球磨时间粉末的显微硬度.结果表明:随着球磨时间的延长,Cr在Cu中的固溶度显著提高,晶粒不断细化和微应变增加,导致粉末微观硬度的提高.在球磨过程中添加一定量的稀土可以促进机械合金化效果.
参考文献
| [1] | 刘平,黄金亮,曹兴国.快速凝固高强度高导电Cu-Cr合金的组织和性能[J].兵器材料科学与工程,1999(01):12. |
| [2] | Suryanarayana C.;Boldyrev VV.;Ivanov E. .The science and technology of mechanical alloying[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2001(0):151-158. |
| [3] | Kock C C;Cavin O B;Mckamey C G et al.Preparation of amorphous Ni60Nb40 by mechanical alloying[J].Applied Physics Letters,1983,43(11):1017-1019. |
| [4] | B. S. Murty;S. Ranganathan .Novel materials synthesis by mechanical alloying/milling[J].International Materials Reviews,1998(3):101-141. |
| [5] | Ricardo B;Schwardz R B;Carl C et al.Formation of amorphous alloys by the mechanical alloying of crystalline powders of pure metals and powders of intermetallics[J].Applied Physics Letters,1986,49(03):146-151. |
| [6] | Grigorieva TF.;Boldyrev VV.;Ivanov EY.;Barinova AP. .THE INFLUENCE OF STRUCTURAL RELATIONSHIP ON EXTENDED SOLID SOLUBILITY AT MECHANICAL ALLOYING[J].Solid state ionics,1997(1):17-24. |
| [7] | 倪红军,孙宝德,蒋海燕,丁文江.稀土熔剂对A356合金二次枝晶臂间距的影响[J].中国有色金属学报,2002(05):940-944. |
| [8] | 刘立新;安阁英 .铈在铝铜合金凝固过程中的作用[J].机械工程学报,1989,25(02):98-103. |
| [9] | 王仲珏,许忠胜.用Rece45变质处理Cu-Cr合金铸件的工艺[J].特种铸造及有色合金,1999(03):44. |
| [10] | Fecht H J.Synthesis and properties of nanocrystalline metals and alloys prepared by mechanical attrition[J].Nanostructured Materials,1992(01):125-130. |
| [11] | Koch C C .Research on metastable structures using high energy ball milling at north carolina state university[J].Materials Transactions-Japan Institute of Metals,1995,36(02):85-95. |
| [12] | 范雄.金属X射线学[M].北京:机械工业出版社,1989 |
| [13] | Scherra A;Guinier.X-ray diffraction[M].San Francisco:Freeman,1963 |
| [14] | Murty B S;Ranganathan S .Novel material synthesis by mechanical alloying/milling[J].International Materials Reviews,1998,43(03):1-141. |
| [15] | Maurice D;Courtney T H .Modeling of mechanical alloying:part Ⅰ:deeformationcoalescence,andfragmentation mechanisms[J].Metallurgical and Materials Transactions,1994,25A(01):147-158. |
| [16] | 刘俊友,刘英才,尹衍升,刘国权,范润华,包志臣.稀土在铁基高铬合金粉末球磨过程中的作用[J].中国稀土学报,2000(04):347-351. |
| [17] | 许北雪,吴锦雷,刘盛,郭等柱,邵庆益,刘惟敏,薛增泉,吴全德.稀土镧对真空蒸发沉积银纳米粒子团聚的影响[J].物理化学学报,2002(01):91-94. |
| [18] | 揭晓华,程秀,蔡莲淑,谢光荣.稀土对SiC纳米粉体机械合金化形成的影响[J].材料科学与工程学报,2004(01):55-58. |
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