ժҪ Paint baking treatment was carried out in a silicon oil bath at 170�� for 20 min for Si-Al-Mn TRIP Steel sheet with different pre-strains, effect of pre-strain on microstructures and properties was studied before and after baking. The results is shown that with the increasing of pre-strain amount during pre-straining and baking, the volume fraction of retained austenite decreases, the volume fraction of martensite and bainite increases, as well as yield strength enhances; as pre-strain ranges from 0 to 4%, the bake-hardening(BH) value increases; while from 4 to 16%, the BH value decreases; when the pre-strain amount is 4%, the highest BH value is about 70MPa in Si-Al-Mn TRIP Steel sheet with niobium, which displays excellent bake-hardening behavior.
Abstract��Paint baking treatment was carried out in a silicon oil bath at 170�� for 20 min for Si-Al-Mn TRIP Steel sheet with different pre-strains, effect of pre-strain on microstructures and properties was studied before and after baking. The results is shown that with the increasing of pre-strain amount during pre-straining and baking, the volume fraction of retained austenite decreases, the volume fraction of martensite and bainite increases, as well as yield strength enhances; as pre-strain ranges from 0 to 4%, the bake-hardening(BH) value increases; while from 4 to 16%, the BH value decreases; when the pre-strain amount is 4%, the highest BH value is about 70MPa in Si-Al-Mn TRIP Steel sheet with niobium, which displays excellent bake-hardening behavior.
TANG Zheng-you. Effect of Prestrain on Microstructures and Properties of Si-Al-Mn TRIP Steel Sheet with Niobium[J]. �й������ڿ���, 2010, 17(4): 59-65.
TANG Zheng-you. Effect of Prestrain on Microstructures and Properties of Si-Al-Mn TRIP Steel Sheet with Niobium. Chinese Journal of Iron and Steel, 2010, 17(4): 59-65.
2010, Vol. 17 
