X20Cr13钢材成分对力学性能影响的回归分析  

Regression Analysis of Effect of Chemical Composition on Mechanical Properties of X20Cr13 Steel Products

作　　者：张丽娜[1] 孙永庆[2] 梁剑雄[2] 杨志勇[2] 刘振宝[2] 李文辉[2] 

机构地区：[1]抚顺特殊钢股份有限公司技术中心,抚顺113001 [2]钢铁研究总院特殊钢研究所,北京100081

出　　处：《特殊钢》2016年第1期54-56,共3页Special Steel

摘　　要：对钢厂6 t电弧炉+LF+VOD+3 t ESR生产的40 mm×40 mm^80 mm×80 mm X20Cr13不锈钢方钢棒材(/%:0.17~0.22C,0.30~0.80Mn,0.10~0.50Si,0.30~0.80Ni,12.5~14.0Cr)随机抽取89炉次,进行化学成分与力学性能的统计回归分析,得到了该类钢材成分与其力学性能的定量回归关系式:σ_s=704.9+121.9[Ni]-84.9[Mn];σ_b=638.7+51.1[Ni]-40.5[Mn]+16.9[Cr];A=81.8-24.8[C]+2.7[Mn]-4.4[Cr];Z=49.4+47.5[C]+4.8[Si]+4.3[Ni];A_(KV)=-90.8-55.8[Mn]+10.2[Cr]+154.1[Si]。如工艺参数和棒材规格等因素改变时,应重新回归分析,修正方程系数。The statistic regression analysis on chemical composition and mechanical properties of random sampling 89 heats of steel X20Cr13（/%：0.17 ~0.22 C,0.30 ~0.80 Mn,0.10~0.50 Si,0.30 ~0.80 Ni,12.5 ~ 14.0Cr） 40 mm×40 mm ~ 80 mm×80 mm square bar products produced by 6 t EAF ＋ LF ＋ VOD ＋ 3 t ESR process at steelworks has been carried out to get the quantitative regression relation between chemical composition and mechanical properties of this steel series;σ_s =704.9 ＋ 121.9[Ni]-84.9[Mn];σ_b = 638.7 ＋ 51.1[Ni]-40.5[Mn]＋ 16.9[Cr];A=81.8-24.8[C]＋2.7[Mn]-4.4[Cr];Z = 49.4 ＋47.5[C]＋ 4.8[Si]＋4.3[Ni];A_（KV） =-90.8-55.8[Mn]＋10.2[Cr]＋154.1[Si].As the process parameters and size of bar products change,the re-regression analysis should be carried out to revise the equation factors.

关 键 词：EAF-LF-VOD-ESR工艺 X20Cr13钢 力学性能 统计回归分析 

分 类 号：TG142.71[一般工业技术—材料科学与工程]