TY - JOUR
T1 - Fabrication of lotus-type porous carbon steel slabs by continuous casting technique in nitrogen atmosphere
AU - Kashihara, Makoto
AU - Suzuki, Shinsuke
AU - Kawamura, Yuki
AU - Kim, Sang Youl
AU - Yonetani, Hiroshi
AU - Nakajima, Hideo
N1 - Funding Information:
The current work was carried out as a part of the program ‘‘Advanced Machining System Development Project,’’ which was supported by New Energy and Industrial Technology Development Organization. The current work was also supported by the Grant-in-Aid for the Creation of Innovations through Business-Academic-Public Sector Cooperation and by Priority Assistance for the Formation of Worldwide Renowned Centers of Research—Global COE Program (Project: Center of Excellence for Advanced Structural and Functional Materials Design) from the Ministry of Education, Culture, Sports, Science, and Technology, Japan.
PY - 2010/9
Y1 - 2010/9
N2 - Lotus-type porous carbon steel slabs with long cylindrical pores aligned in one direction were fabricated by the continuous casting technique in a mixture gas of N2 0.8 MPa and Ar 1.7 MPa or in N2 2.5 MPa at various transfer velocities from 2.5 mm•min-1 to 20 mm•min-1. The pore size in lotus carbon steel fabricated in the mixture gas of nitrogen and argon was small and homogeneous, whereas the pore size in nitrogen had bimodal distribution depending on the transfer velocity. The large pores were observed mainly at the edge of the slab, which are considered to be merged of several inclined pores. The porosity depended on nitrogen partial pressure, which is explained by Sieverts' law. The hardness of lotus carbon steel matrix increased, which was attributed to the solid-solution of nitrogen.
AB - Lotus-type porous carbon steel slabs with long cylindrical pores aligned in one direction were fabricated by the continuous casting technique in a mixture gas of N2 0.8 MPa and Ar 1.7 MPa or in N2 2.5 MPa at various transfer velocities from 2.5 mm•min-1 to 20 mm•min-1. The pore size in lotus carbon steel fabricated in the mixture gas of nitrogen and argon was small and homogeneous, whereas the pore size in nitrogen had bimodal distribution depending on the transfer velocity. The large pores were observed mainly at the edge of the slab, which are considered to be merged of several inclined pores. The porosity depended on nitrogen partial pressure, which is explained by Sieverts' law. The hardness of lotus carbon steel matrix increased, which was attributed to the solid-solution of nitrogen.
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U2 - 10.1007/s11661-010-0314-3
DO - 10.1007/s11661-010-0314-3
M3 - Article
AN - SCOPUS:77955656215
SN - 1073-5623
VL - 41
SP - 2377
EP - 2382
JO - Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
JF - Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
IS - 9
ER -