CSP工艺生产低碳钢中的纳米碳化物及其对钢的强化作用

Nano-scale Carbide and Strengthening Effect in Low Carbon Steel Produced by CSP Process

摘要: 用化学相分析及x射线小角散射法研究了CSP工艺生产HSLC钢中碳化物的成分、数量及粒度分布,发现尺寸小于18 nm的碳化物含量大于文献中测定的CSP含Nb的HSLA钢中尺寸小于18nm的Nb (C_xN_y)含量.对纳米级碳化物对钢的强化作用进行了讨论.

Abstract: The carbide composition, quantity and particle size distribution of HSLC steel produced by CSP process were studied by chemical phase analysis and SAXS method with a 3014 X-ray diffracto-spectrometer and a Kratky small angle scattering goniometer. It is found that the content of carbide with its size less than 18 nm is more than that of Nb(C_xN_y) with its size less than 18 nm in Nb-contained CSP-HSLA steel reported in reference. The strengthening effect of nano-scale carbide on the steel was discussed.