通过差热分析确定了含Cr量分别为0,0.25%,0.5%,1.0%,2.0%,4.0%(摩尔分数)的CuMnCr合金的熔化温度.采用座滴法测量了不同温度下不同Cr含量的CuMnCr合金在石墨表面的铺展面积和接触角.在真空气氛中Mn的蒸发引起CuMnCr合金在石墨表面的润湿性随温度变化而变化,不同Cr含量的CuMnCr合金在石墨表面的接触角在960℃时最小.不同Cr含量的合金在不同温度下表现出最佳的铺展面积,随含Cr量的增加界面反应层的厚度增加.通过X射线衍射分析不含Cr和含Cr的合金界面反应产物分别为Mn7C3和CrxCy.
参考文献
| [1] | Scott P M;Nicholas M.The wetting and bonding of diamonds by copper-base binary alloys[J].Journal of Materials Science,1975(10):1833-1840. |
| [2] | 孙毓超;刘一波;王秦生.金刚石工具与金属学基础[M].北京:中国建筑工业出版社,1999 |
| [3] | 虞觉奇;易文质;陈邦迪.二元合金相图集(一)[M].上海:上海科学技术出版社,1991 |
| [4] | 杨吉军 .金刚石孕镶体工具用（Cu<,62>Mn<,38>)<,100-x>Cr<,x>活性合金钎料[D].西安交通大学,2004. |
| [5] | Zhu YF.;Yao WQ.;Cao LL.;Wang L. .The interface diffusion and reaction between Cr layer and diamond particle during metallization[J].Applied Surface Science: A Journal Devoted to the Properties of Interfaces in Relation to the Synthesis and Behaviour of Materials,2001(1/2):143-150. |
| [6] | Huang SF.;Tsai HL.;Lin ST. .Effects of brazing route and brazing alloy on the interfacial structure between diamond and bonding matrix[J].Materials Chemistry and Physics,2004(2/3):251-258. |
| [7] | R. VOITOVITCH;A. MORTENSEN;F. HODAJ .DIFFUSION-LIMITED REACTIVE WETTING: STUDY OF SPREADING KINETICS OF Cu-Cr ALLOYS ON CARBON SUBSTRATES[J].Acta materialia,1999(4):1117-1128. |
| [8] | Zhang JX.;Chandel RS.;Seow HP. .Effects of chromium on the interface and bond strength of metal-ceramic joints[J].Materials Chemistry and Physics,2002(1/3):256-259. |
| [9] | C. -M. Sung .Brazed diamond grid: a revolutionary design for diamond saws[J].Diamond and Related Materials,1999(8-9):1540-1543. |
| [10] | Chattopadhyay A K .On performance of brazed mono-layer diamond grinding wheel[J].Annals of the CIRP,1991,40(01):313-317. |
| [11] | 肖冰,徐鸿钧,武志斌,徐西鹏.Ni-Cr合金真空单层钎焊金刚石砂轮[J].焊接学报,2001(02):23-26. |
| [12] | 于怡青,曾伟民,徐西鹏.锯切加工中金刚石节块的热磨损及Ti-Cr涂层对热磨损的抑制作用[J].摩擦学学报,2002(06):472-476. |
| [13] | 孙凤莲,冯吉才,刘会杰,邱平善,李丹.Ag-Cu-Ti钎料中Ti元素在金刚石界面的特征[J].中国有色金属学报,2001(01):103-106. |
| [14] | 朱永伟,张新明,谢光灼.金刚石表面镀钛对金刚石锯片性能的影响[J].中国有色金属学报,2001(02):258-263. |
| [15] | 李志远;钱乙余;张九海.先进连接方法[M].北京:机械工业出版社,2000 |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%