会议论文详细信息
International Conference on Design and Application of Engineering Materials in conjunction with Seminar Nasional Metalurgi dan Material XI (SENAMM)
The Influence of Mold Material on Cooling Curve, Solidification Parameters, and Micro-hardness of Al_6wt.%Si in Unidirectional Solidification
材料科学;金属学
Masnur, D.^1^2 ; Suyitno^1 ; Malau, V.^1
Mechanical and Industrial Engineering Department, Universitas Gadjah Mada, Jl. Grafika No. 2, Yogyakarta
55281, Indonesia^1
Mechanical Engineering Department, University of Riau, Kampus Bina Widya, km 12.5, Simpang Baru, Pekanbaru
28293, Indonesia^2
关键词: Comparative evaluations;    Cooling curve;    Directionally solidified;    Heat rate;    Mold materials;    Solidification parameter;    Unidirectional solidification;   
Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/547/1/012014/pdf
DOI  :  10.1088/1757-899X/547/1/012014
学科分类:材料科学(综合)
来源: IOP
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【 摘 要 】

The influence of mold material on cooling curve, solidification parameters, and micro-hardness were investigated. Al-6wt.% Si in clay and stainless steel mold was directionally solidified using vertical Bridgman type furnace. The samples were heated up to 700°C at 1.9°C/s heat rate, held for 60 minutes, cooled, and withdrawn at 40 m/s. The results show that the increasing of thermal conductivity by 72% affects cooling curve shape, solidification parameters, and micro-hardness. Furthermore, comparative evaluation of the exponent value of the function of micro-hardness to distance and micro-hardness to growth rate also have been made to proposed the range of exponent value for each mold material.

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