Superplastic diffusion bonding of metallic glasses by rapid heating

被引：6

作者：

Xu, Wanli ^{[1
]}

Li, Weibin ^{[1
]}

Chen, Shenbao ^{[1
]}

Wang, Xiaohuan ^{[1
]}

Li, Fengjiang ^{[1
]}

机构：

[1] Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China

来源：

INTERMETALLICS | 2018年 / 98卷

关键词：

Metallic glasses; Superplastic; Diffusion bonding; Heating rate; Viscosity; SUPERCOOLED-LIQUID REGION; BEHAVIOR; CRYSTALLIZATION; COMPOSITES; VISCOSITY; EXTRUSION; ALLOYS; AL; CU;

D O I：

10.1016/j.intermet.2018.05.001

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We show a superplastic diffusion bonding method to join metallic glasses (MGs) via high-speed heating at 2000 K/min taking a timescale of the order of microseconds to milliseconds at ambient pressure because the minimum viscosity of supercooled liquid drastically decreases as the heating rate increases. The results show strong metallic bonds are formed but the amorphous structure is still maintained. Finally, we establish a general equation containing the involved parameters for high-speed heating bonding. This method provides a new path to join MGs rapidly and benefits for improving the critical size of MGs.

引用

页码：143 / 147

页数：5

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