High pressure die casting of Fe-based metallic glass.
High pressure die casting of Fe-based metallic glass.
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DOI：
10.1038/srep35258
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发表时间：
2016-10-11
影响因子：
4.6
通讯作者：
Bárdos A
中科院分区：
文献类型：
--
作者：
Ramasamy P;Szabo A;Borzel S;Eckert J;Stoica M;Bárdos A
采用高压压铸（HPDC）方法成功制备了最大宽度为25.4mm、最小宽度为5mm的软铁磁铁基大块金属玻璃钥匙形样品，并研究了模具材料、合金温度和流量对显微组织、热稳定性和软铁磁性能的影响。结果表明，熔融金属以低速率和高温流动的钢模可用于生产完全玻璃态的样品。这可归因于模具的层流填充和较低的传热系数，从而避免了钢模具中的集肤效应。此外，磁性测量表明，整个钥匙形样品都保持了材料的非晶结构。尽管由于横截面不同，很难控制钥匙拐角处熔融金属的流动和冷却速率，但这可以通过适当的工具几何形状来克服。目前的结果证实，HPDC 是一种适合铸造铁基大块非晶合金的方法，即使具有复杂的几何形状，也适用于广泛的应用。
Soft ferromagnetic Fe-based bulk metallic glass key-shaped specimens with a maximum and minimum width of 25.4 and 5 mm, respectively, were successfully produced using a high pressure die casting (HPDC) method, The influence of die material, alloy temperature and flow rate on the microstructure, thermal stability and soft ferromagnetic properties has been studied. The results suggest that a steel die in which the molten metal flows at low rate and high temperature can be used to produce completely glassy samples. This can be attributed to the laminar filling of the mold and to a lower heat transfer coefficient, which avoids the skin effect in the steel mold. In addition, magnetic measurements reveal that the amorphous structure of the material is maintained throughout the key-shaped samples. Although it is difficult to control the flow and cooling rate of the molten metal in the corners of the key due to different cross sections, this can be overcome by proper tool geometry. The present results confirm that HPDC is a suitable method for the casting of Fe-based bulk glassy alloys even with complex geometries for a broad range of applications.
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DOI：
10.2320/matertrans1989.30.965
发表时间：
1989-12-01
期刊：
MATERIALS TRANSACTIONS JIM
影响因子：
--
作者：
INOUE, A;ZHANG, T;MASUMOTO, T
通讯作者：
MASUMOTO, T
DOI：
10.2320/matertrans1989.36.1427
发表时间：
1995-12-01
期刊：
MATERIALS TRANSACTIONS JIM
影响因子：
--
作者：
Inoue, A;Shinohara, Y;Gook, JS
通讯作者：
Gook, JS
影响因子：
64.8
作者：
KLEMENT, W;WILLENS, RH;DUWEZ, P
通讯作者：
DUWEZ, P
影响因子：
4
作者：
KUI, HW;GREER, AL;TURNBULL, D
通讯作者：
TURNBULL, D
DOI：
10.1007/s10582-005-0063-5
发表时间：
2005-05-01
期刊：
CZECHOSLOVAK JOURNAL OF PHYSICS
影响因子：
--
作者：
Bárdos, A;Lovas, A;Varga, LK
通讯作者：
Varga, LK