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Influence of Prior Austenite Deformation and Non-Metallic Inclusions on Ferrite in Low Carbon Steels

ZHANG Chi , et al

钢铁研究学报(英文版)

Abstract Effects of prior austenite deformation and non-metallic inclusions on the ferrite nucleation and grain refinement of two kinds of low carbon steels have been studied. The ferrites nucleation on MnS and V(C,N) is observed. The combination of thermal-mechanical processes with adequate amounts...

关键词: austenite deformation;Non-metallic inclusions;Ferrite nucleation;low carbon steel;

Effect of TaC Particles Dissolution on Grain Coarsening in Reduced Activation Steels

XIA Zhi-xin , ZHANG Chi , HUANG Qun-ying , LIU Shao-jun , LI Zhao-dong , YANG Zhi-gang

钢铁研究学报(英文版)

The effect of TaC on grains and packets coarsening in the reduced activation ferritic/martensitic (RAFM) steels was investigated. It was found that the combined effect of the austenitizing temperature and heating rate resulted in the heterogeneous austenite grain growth. When the austenitizing tempe...

关键词: reduced activation steel , TaC precipitation , diffusion , thermodynamic model

Weldability of 780 MPa Super-High Strength Heavy-Duty Truck Crossbeam Steel

WANG Xiao-nan , DI Hong-shuang , ZHANG Chi , DU Lin-xiu , DONG Xue-xin

钢铁研究学报(英文版)

CO2-shielded welding experiments of newly developed, 780 MPa super-high strength heavy-duty truck crossbeam steel were conducted, and the microstructure, microhardness, mechanical properties, and impact toughness of the welded joint were studied. The evolution of the microstructure of the welded joi...

关键词: super-high strength steel , crossbeam steel , weldability , M/A island , impact toughness

Evolution and Coarsening of Carbides in 2.25Cr-1Mo Steel Weld Metal During High Temperature Tempering

TAO Peng , ZHANG Chi , YANG Zhi-gang , et al

钢铁研究学报(英文版)

Transformation and coarsening of carbides in 2.25Cr-1Mo steel weld metal during tempering at 700 oC for different time intervals ranging from 1 to 150 h has been examined by transmission electron microscopy and scanning electron microscopy. M3C carbides were observed in the as-welded specimens and w...

关键词: weld metal;carbide;tempering;coarsening

出版年份

• 2012年1篇

刊物分类

• 金属学报1篇

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