TY - JOUR
T1 - Investigation of Fine Heterogeneous Microstructure on the Mechanical Properties of MIM Fe-Ni Alloy Steels
AU - Wan Harun, Wan Sharuzi
AU - Osada, Toshiko
AU - Kang, Hyungoo
AU - Tsumori, Fujio
AU - Miura, Hideshi
PY - 2012/12/15
Y1 - 2012/12/15
N2 - The influence of nickel particle sizes, nickel mass%, and sintering temperatures on the microstructure and mechanical properties of injection molded Fe-Ni compacts have been studied. The mixed elemental carbonyl iron and water-atomized nickel powders were utilized in this study. Tempered compact added 6 mass% fine nickel powder which was sintered at 1250°C for 1 hour showed superhigh strength of 2040 MPa with elongation of 8.1 %, the best properties among reported data in MIM low alloy steel compacts. These excellent mechanical properties by fine heterogeneous microstructure of the compact are explained in terms of the complicated networks of nickel content variation throughout the steel matrix.
AB - The influence of nickel particle sizes, nickel mass%, and sintering temperatures on the microstructure and mechanical properties of injection molded Fe-Ni compacts have been studied. The mixed elemental carbonyl iron and water-atomized nickel powders were utilized in this study. Tempered compact added 6 mass% fine nickel powder which was sintered at 1250°C for 1 hour showed superhigh strength of 2040 MPa with elongation of 8.1 %, the best properties among reported data in MIM low alloy steel compacts. These excellent mechanical properties by fine heterogeneous microstructure of the compact are explained in terms of the complicated networks of nickel content variation throughout the steel matrix.
U2 - 10.2497/jjspm.59.677
DO - 10.2497/jjspm.59.677
M3 - Article
SN - 0532-8799
VL - 59
SP - 677
EP - 684
JO - Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
JF - Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
IS - 12
ER -