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金属学报  1986, Vol. 22 Issue (1): 115-152    
  论文 本期目录 | 过刊浏览 |
Nb-V微合金钢在(γ+α)双相区的控轧及有关强化效应的估算
孙福玉;徐温崇
冶金工业部钢铁研究总院;冶金工业部钢铁研究总院
CALCULATION OF YIELD STRENGTH OF Nb-V MICROALLOY STEEL CONTROLLED-ROLLED INTO DUAL-PHASE γ+α
SUN Fuyu; XU Wenehong (Central Iron and Steel Research Institute; Ministry of Metallurgical Industry; Beijing)
引用本文:

孙福玉;徐温崇. Nb-V微合金钢在(γ+α)双相区的控轧及有关强化效应的估算[J]. 金属学报, 1986, 22(1): 115-152.
, . CALCULATION OF YIELD STRENGTH OF Nb-V MICROALLOY STEEL CONTROLLED-ROLLED INTO DUAL-PHASE γ+α[J]. Acta Metall Sin, 1986, 22(1): 115-152.

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摘要: 利用小型试验轧机,对Nb-V微合金钢进行了(γ+α)双相区控轧试验。研究了终轧温度对钢的显微组织和力学性能的影响。定量估算了钢中的固溶强化σ_s,析出强化σ_p,位错强化σ_d,亚晶强化ck_s l~(-1/2)和晶粒细化的强化效应k_y d~(-1/2)。建立了一个新的有关低碳微合金化控轧钢的屈服强度关系式: σ_y=σ_i+σ_s+[σ_p~2+σ_d~2+(ck_s l~(-1/2))~2]~(1/2)+k_y d~(-1/2)用该式计算的σ_y值与实验结果符合得相当好。
Abstract:The controlled roiling experiments into the dual-phase γ+a region of the Nb-V microalloy steel have been carried out using a pilot roiling mill. The effect of finishing roiling temperature on the microstructure and mechanical properties of the steel was examined. The yield strength components containing the solid solution strengthening, σ_s, precipitation strengthening, σ_p, dislocation strengthening, σ_d, subgrain strengthening, ck_s l~(-1/2) and grain strengthening, k_yd~(-1/2), were estimated so that a new expression is found as:σ_y=σ_i+σ_s+[σ_p~2+σ_d~2+(ck_s l~(-1/2))~2]~(1/2)+k_yd~(-1/2)The σ_y calculated is in quite agreement with the experimental results.
收稿日期: 1986-01-18     
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