在无镍白铜(CuMnZn)中分别添加微量稀土Ce(0.04%,0.06%,0.08%),研究稀土Ce含量及加工工艺参数对铸态、热轧态和冷轧态组织及性能的影响.探索用无镍白铜(CuMnZn)替代目前广泛使用的弹性合金材料--锌白铜的可行性.研究结果显示:当稀土含量小于0.04%时,随合金中稀土Ce含量的增加,铸态合金的α晶粒尺寸减少,细化晶粒,提高合金的抗拉强度、伸长率,且合金具有较好的冷加工性能.当稀土Ce含量超过0.04%后,合金的晶粒又有长大的趋势.材料的性能在0.04%左右达到峰值,随着稀土Ce含量的增加,其性能呈下降趋势.对含0.04%稀土Ce的无镍白铜(CuMnZn)合金,采用合理加工工艺和热处理制度加工而成的0.3 mm厚的带材的洛氏硬度、抗拉强度及伸长率分别为85HRB,567.4 MPa及5%,与Y状态BZn15-20材料的性能相当,满足弹性材料的使用要求.且无镍白铜(CuMnZn)合金中的元素都是国内富有元素,可有效降低成本,具有实用价值.
参考文献
| [1] | Tian R z;Wang z T.Copper Alloy and Its Machining Handbook[M].长沙:中南工业大学出版社,2002:361. |
| [2] | Du Yunshi.Research of new type flexible zinc-nickel copper alloy[J].Copper,1992(01):46. |
| [3] | Zhang Mingxing.Research of free-cut BZnl5-24-1.5 alloy[J].Copper,1993(01):44. |
| [4] | Fackea J;Tauber K;Rechtziegel B .Alloy in particular for use in the manufacture of～ames for slass and jewelry[P].US5908517,1999. |
| [5] | Faekert J;Tauber K;Rechtziegel B .Alloy in particular for use in the manufacture of frames for slass and jewelry[P].US5919332,1999. |
| [6] | Kazuhito Kita;Yasuharu Yoshimura .Nickel@free copper alloy[P].EP0911419A1,1999. |
| [7] | Kazuhito Kita;Yasuharu Yoshimura .Nickel-free copper alloy[P].US5997663,2000. |
| [8] | Ammannati Niooolb .Copper-zinc-manganese alloy for the articles coming into direct and prolonged contact with the human skin[P].EP0685564A1,1999. |
| [9] | Zhang Yuping;Zhang Jinxu;Wu Jiansheng.Relationship between color and composition of Cu-Mn-Zn alloys[A].,2001 |
| [10] | Shanghai No.1 Copper Rod Plants.Anti-corrosion of coppermanganese alloy and its white wire manufacturing methods[P].China:01126377.6,2004. |
| [11] | Zhang Yuping .Quantitative Investigation on Color Characteristics of Metallic Materials and Its Application to Development of Nickel-Free White Copper Alloys[D].上海:上海交通大学,2003. |
| [12] | Lei Ting;Zhou Lin;Fang Shuming .Research of a low Ni-Zn white copper alloys[J].Special Casting＆Nonferrous Alloys,2007,27(10):813. |
| [13] | 孟德权,张伟强,张广凤.稀土元素La和Ce对铸态纯铜组织与性能的影响[J].铸造,2007(06):651-653. |
| [14] | Wei Quanjin.Electron Microscopy of Materials[M].Bering:Metallurgy Industry Press,1990:116. |
| [15] | Shu Delin.Metal Mechanical Properties[M].Bering:Machinery Industry Press,2002:24. |
| [16] | Liu Ping;Ren Fengzhang;Jia Shuguo.Copper Alloy and Its Application[M].北京:化学工业出版社,2007:124. |
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%