| 查看: 341 | 回复: 2 | |||
| 当前主题已经存档。 | |||
linying099铜虫 (小有名气)
|
[交流]
【原创】ACTA MATERIALIA最新BMG文章
|
||
|
Microstructural heterogeneities governing the deformation of Cu47.5Zr47.5Al5 bulk metallic glass composites S. Paulya, , , G. Liub, G. Wanga, U. Kühna, N. Matterna and J. Eckerta, c aIFW Dresden, Institut für Komplexe Materialien, Helmholtzstraße 20, D-01069 Dresden, Germany bState Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi’an Jiaotong University, Xi’an 710049, China cInstitut für Werkstoffwissenschaft, Technische Universität Dresden, D-01062 Dresden, Germany Received 17 June 2009; accepted 24 July 2009. Available online 22 August 2009. Abstract Cu47.5Zr47.5Al5 rods with different volume fractions of crystalline B2 CuZr phase were prepared by copper mould casting. Based on microstructural investigations a solidification mechanism is proposed for these bulk metallic glass (BMG) composites. The composite microstructure enhances the compressive plasticity (plastic strain up to 14%) and both plastic strain as well as yield strength scale with the crystalline volume fraction. Yield strength and fracture strain were successfully calculated using a strength model, which considers percolation and an empirical three microstructural element body approach, respectively. Furthermore, B2 CuZr was synthesized by means of a thermal cycling treatment and uniaxial compression tests were carried out at room temperature. The intrinsic work-hardenability caused by a martensitic transformation has strong implications on the deformation behaviour of the investigated Cu47.5Zr47.5Al5 BMG composites. Keywords: Rapid solidification; Compression test; Bulk amorphous alloys; Shape memory alloys; Plastic deformation http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TW8-4X2F74N-1&_user=1021771&_rdoc=1&_fmt=&_orig=search&_sort=d&_docanchor=&view=c&_acct=C000050170&_version=1&_urlVersion=0&_userid=1021771&md5=fc675210a3bedb70566d47920d355005 |
回复此楼» 猜你喜欢
08工科求调剂290分
已经有5人回复
-
301求调剂
已经有11人回复
-
270求调剂
已经有9人回复
-
一志愿厦门大学材料工程专硕354找调剂！！！
已经有7人回复
-
311求调剂
已经有14人回复
-
298求B区调剂
已经有5人回复
-
一志愿北京科技大学085601材料工程英一数二初试总分335求调剂
已经有9人回复
-
求调剂推荐
已经有3人回复
-
一志愿北京理工大学本科211材料工程294求调剂
已经有9人回复
-
初试301，代码085701环境工程，本硕一致，四六级已过，有二区一作，共发表5篇论文
已经有5人回复
hslining
木虫 (正式写手)
- 应助: 0 (幼儿园)
- 贵宾: 0.805
- 金币: 3647.7
- 散金: 346
- 红花: 1
- 帖子: 797
- 在线: 53.9小时
- 虫号: 473457
- 注册: 2007-12-05
- 专业: 金属材料的制备科学与跨学
2楼2009-09-29 17:48:47
 |
3楼2009-11-19 00:48:10
