TY - JOUR
T1 - Research on thermoplastic formability and nanomoulding mechanism of lightweight Ti-based bulk metallic glasses
AU - Gong, Pan
AU - Kou, Hongchao
AU - Wang, Sibo
AU - Deng, Lei
AU - Wang, Xinyun
AU - Jin, Junsong
N1 - Publisher Copyright:
© 2019 Elsevier B.V.
PY - 2019/9/15
Y1 - 2019/9/15
N2 - The poor thermoplastic formability is one of the bottlenecks in restricting the wide application of Ti-based bulk metallic glasses. In this study, alloying method was adopted to improve the thermoplastic formability of a lightweight Ti–Zr–Be bulk metallic glass (BMG). Different combinations of alloying elements, alloying routes and alloying contents have been tried to optimize the alloy composition. S parameter was found to be an effective indicator for evaluating the thermoplastic formability of the studied Ti-based bulk metallic glasses. A Ti45Zr20Be30Fe5 alloy, which possesses unique thermoplastic formability, has been successfully developed. A nanomoulding processing map for Ti45Zr20Be30Fe5 alloy has been constructed. To reduce the capillary effect, a wetting layer has been introduced during the nanomoulding process. Finally Ti-based BMG nanorods have been successfully fabricated in air, which further confirms the effectiveness of the proposed processing map and the superior thermoplastic formability of developed Ti45Zr20Be30Fe5 BMG.
AB - The poor thermoplastic formability is one of the bottlenecks in restricting the wide application of Ti-based bulk metallic glasses. In this study, alloying method was adopted to improve the thermoplastic formability of a lightweight Ti–Zr–Be bulk metallic glass (BMG). Different combinations of alloying elements, alloying routes and alloying contents have been tried to optimize the alloy composition. S parameter was found to be an effective indicator for evaluating the thermoplastic formability of the studied Ti-based bulk metallic glasses. A Ti45Zr20Be30Fe5 alloy, which possesses unique thermoplastic formability, has been successfully developed. A nanomoulding processing map for Ti45Zr20Be30Fe5 alloy has been constructed. To reduce the capillary effect, a wetting layer has been introduced during the nanomoulding process. Finally Ti-based BMG nanorods have been successfully fabricated in air, which further confirms the effectiveness of the proposed processing map and the superior thermoplastic formability of developed Ti45Zr20Be30Fe5 BMG.
KW - Bulk metallic glasses
KW - Formability
KW - Nanomoulding
KW - Thermoplastic forming
UR - http://www.scopus.com/inward/record.url?scp=85067232354&partnerID=8YFLogxK
U2 - 10.1016/j.jallcom.2019.06.039
DO - 10.1016/j.jallcom.2019.06.039
M3 - 文章
AN - SCOPUS:85067232354
SN - 0925-8388
VL - 801
SP - 267
EP - 276
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
ER -