材料期刊网

Relationship between Heat Treatment and Corrosion Behavior of Mg-15Y Alloy

XU Hong , DENG Xia , ZHANG Xin , ZHANG Kui , LIU Yanpeng , LI Shaohua

武汉理工大学学报-材料科学版(英文版) doi:10.1007/s11595-015-1230-6

关键词:

Effect of Thermomechanical Processing on Microstructures of TRIP Steel

TANG Zhengyou , DING Hua , DU Linxiu , DING Hao , ZHANG Xin

钢铁研究学报(英文版)

In order to control retained austenite, the effect of hot deformation in the intercritical region on the microstructure of hotrolled transformationinduced plasticity (TRIP) steel was studied on a Gleeble 1500 hot simulator. Compressive strains varying in amounts from 0 to 60% were imposed in the intercritical region, and effects on the formation of polygonal ferrite, carbidefree bainite and retained austenite were determined. With increasing the hot deformation amount and the ferrite content and decreasing the carbidefree bainite content, the volume fraction of retained austenite decreases. Increased dislocation density, grain refinement of ferrite and carbon enrichment are the main factors which control retained austenite stability.

关键词: TRIP steel;intercritical (α+γ) region;hot deformation;retained austenite