采用Si模制作的V型槽微压印实验评价了4种具有不同脆度的块体非晶合金(Pd40Cu30Ni10P20,Zr65Cu15Al10Ni10,Cu46Zr42Al7Y5,Zr58.5Cu15.6Al10.3Ni12.8Nb2.8)在过冷液相区内的微成形能力.结果表明,尽管不同的BMG表现出不同的表观粘度,但在相同的应变条件下,各种BMG却呈现出相似的充型面积,这表明它们具有相似的微成形能力.这一结果源于在本实验条件下(成形温度T=1.07Tg,应变率(ε)=2×10-3s-1),各BMG均遵循相同的牛顿流变机制.最后,通过有限元模拟验证了这一结论.
参考文献
| [1] | Geiger M;Kleiner M;Eckstein R et al.[J].CIRP Aunals-Manufacturing Technology,2001,50(02):445. |
| [2] | Chu J P;Wijaya H;Wu C W et al.[J].Applied Physics Letters,2007,90(03):034101. |
| [3] | Pan C T;Wu T T;Chen M F et al.[J].Sensors and Actuators B: Chemical,2008,A141(02):422. |
| [4] | Schroers J .[J].Advanced Materials,2009,21(23):1. |
| [5] | Kumar G;Tang H X;Schroers J .[J].Nature,2009,457(7231):868. |
| [6] | A.Inoue .Stabilization of metallic supercooled liquid and bulk amorphous alloys[J].Acta materialia,2000(1):279-306. |
| [7] | Wang W H;Dong C;Shek C H .[J].Materials Science and Engineering,2004,R 44(02):45. |
| [8] | Nieh T G;Wadsworth J .[J].Scripta Materialia,2006,54(03):387. |
| [9] | Schroers J;Nguyena T;O'Keeffe S et al.[J].Materials Science and Engineering,2007,A449-451:898. |
| [10] | Greer A L .[J].Materials Today,2009,12(1-2):14. |
| [11] | Thomsen T H;Backofen W A;Holt D L .[J].Metals Engineering Quarterly,1970,10:1. |
| [12] | Saotome Y;Hatori T;Zhang T et al.[J].Mater Sct Eng,2001,A304-306:716. |
| [13] | Saotome Y;Imai K;Shioda S et al.[J].Intermetallics,2002,10(11-12):1241. |
| [14] | Saotome Y;Itoh K;Zhang T et al.[J].Scripta Materialia,2001,44(8-9):1541. |
| [15] | Saotome Y;Miwa S;Zhang T et al.[J].Journal of Materials Processing Technology,2001,113(1-3):64. |
| [16] | Schroers J .[J].Acta Materialia,2008,56(03):471. |
| [17] | Ok M R;Suh J Y;Chung S J et al.[J].Materials Science and Engineering,2007,A454-455:14. |
| [18] | Angell CA .[J].Journal of Physics and Chemistry of Solids,1988,49(08):86. |
| [19] | Fan G J;Li J J Z;Rhim W K et al.[J].Applied Physics Letters,2006,88(22):221909. |
| [20] | Johnson W L;Samwer K .[J].Physical Review Letters,2005,95(19):195501. |
| [21] | Yoshihito Kawamura;Tsutomu Shibata;Akihisa Inoue;Tsuyoshi Masumoto .Superplastic deformation of Zr_(65)Al_(10)Ni_(10)Cu_(15) metallic glass[J].Scripta materialia,1997(4):431-436. |
| [22] | Kawamura Y;Shibata T;Inoue A et al.[J].Applied Physics Letters,1997,71(06):77. |
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%