Homogeneous Flow and Superplastic Forming Process of Ti-Zr-Cu-Pd-Sn Bulk Metallic Glass in Supercooled Liquid Region

摘要：

The Ti-Zr-Cu-Pd-Sn bulk metallic glasses have some advantages of high yield strength about 2000Mpa,good corrosion resistance and absence of toxic element, such as Al, Ni and Be. So the Ti-based metallic glass is regarded as a promising biomaterial and lightweight material. The homogenous deformation and superplastic forming process of Ti-Zr-Cu-Pd-Sn-Sn bulk metallic glass was investigated. The homogeneous deformation behavior is strongly dependent on the strain rate. The metallic glass exhibits Newtonian behavior at relative low strain rate and nonNewtonian behavior at relative high strain rate. The micro-gear was successfully extruded by superplastic forming process,indicating that the Ti-Zr-Cu-Pd-Sn bulk metallic glass processes good workability in supercooled liquid region. The deformed metallic glass was investigated by X-ray diffraction (XRD),demonstrating that no detectable crystalline phase precipitated during superplastic forming.

关键词： Ti-based bulk metallic glass superplastic forming process homogeneous deformation behavior

作者: X. Zhou H. C. Kou J. Wang J. S. Li J. J. Blandin L. Zhou

作者单位: State Key Laboratory of Solidification Processing,Northwestern Polytechnical University,XVan 710072, Institut Néel /CRETA,CNRS Grenoble,25 Avenue des Martyrs,BP 166,38042 Grenoble Cedex 9,France

会议类型: 国际会议

会议名称: The 12th World Conference Titanium(第十二届世界钛会 Ti-2011)

会议地点: 北京

会议语种:英文

页码: 1808-1811

在线出版日期: 2011-06-19（万方平台首次上网日期，不代表论文的发表时间）