Nitride precipitation in salt-bath nitrided interstitial-free steel

作者：Lee Tae Ho^*; Oh Chang Seok; Lee Min Ku; Han Sang Won

来源：Materials Characterization, 2010, 61(10): 975-981.

DOI：10.1016/j.matchar.2010.06.011

• Nitriding
• Precipitation
• Transmission electron microscopy
• Microstrain
• Neutron diffraction

Nitride precipitation and its effect on microstrain in salt-bath nitrided interstitial-free steel were investigated using transmission electron microscopy and neutron diffraction As the cooling rate after nitriding decreased, two nitrides, gamma'-Fe(4)N and alpha"-Fe(16)N(2), were identified in diffusion zone Combined analyses using Rietveld whole-profile fitting and size-strain analysis revealed that the microstrain in the nitrided specimen increased due to nitrogen supersaturation and then decreased after nitride precipitatio

• 出版日期2010-10