【摘 要】
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This paper reviews the recent development of V-N microalloying technologies and its applications in HSLA steels in China.Enhanced-nitrogen in V-containing s
【机 构】
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Central Iron and Steel Research Institute No. 76 Xueyuan Nanlu,Haidian District,Beijing 100081,China
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This paper reviews the recent development of V-N microalloying technologies and its applications in HSLA steels in China.Enhanced-nitrogen in V-containing steels promotes precipitation of fine V(C,N)particles,and improves markedly precipitation strengthening effectiveness of V(C,N),therefore,there is a significant saving of V addition in a given strength requirement.V-N microalloying can be used effectively for ferrite grain refinement as well by the nucleation of intra-granular ferrite promoted by VN precipitates in Austenite in V-N steels.V-N microalloying process is a cost-effective way which has been widely used for high strength rebars,section steels,forging steels,seamless pipes,and CSP strip steels in China.
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