转化管蠕变参量的二元回归分析  

DUALISTIC REGRESSION ANALYSIS OF THE CREEP PARAMETERS FOR REFORMER TUBES

作　　者：马功勋[1] 沈复中[1] 程可[1] 

机构地区：[1]南京化工大学,南京210009

出　　处：《理化检验（物理分册）》1999年第7期304-307,共4页Physical Testing and Chemical Analysis(Part A:Physical Testing)

摘　　要：对于以温度和应力为变量的不函数型蠕变参量,本文提出了一种二元回归分析方法,计算了HK40转化炉管新材料的稳态蠕变速率参量和编变损伤速率参量的回归系数,并探讨了材料常数对这两个蠕变参量的影响.回归出的蠕变参量解析式与试验数据拟合得颇好.特别对于极少量的试验数据,更能显出本文方法的有效性.For parameters of creep as power type functions of the temperature and stress, a method of dual-istic regression analysis has been proposed. Regression coefficients of two parameters (steady creep rate and creep damage rate) of HK-40 reformer tubes were calculated by this method. The effects of material constants on two creep parameters were discussed. The regressed analytic formulas of creep parameters fit in well with tested data. The method is effective, especially for only a few tested data.

关 键 词：转化管 蠕变 损伤 二元回归分析 

分 类 号：TG113.255[金属学及工艺—物理冶金] TQ055.8[金属学及工艺—金属学]