王正跃
,
杜挺
,
王龙妹
金属学报
在1300—1500℃范围内用溶解度法以及在1550℃用Ag浴等Sn活度分配平衡法分别对Fe-C-Sn溶液进行了研究,主要结果如下: (1)测得Fe液中碳的饱和溶解度〔％C〕饱与Sn含量〔％Sn〕的关系: 1300℃〔％C〕_(sat)=4.65-0.086〔％Sn〕 1400℃〔％C〕_(sat)=4.86-0.106〔％Sn〕 1550℃〔％C〕_(sat)=5.13-0.131〔％Sn〕 (2)〔％C〕_(sat)与〔％Sn〕和温度的关系: 〔％C〕_(sat)=8.41-0.101〔％Sn〕-5904(1/T) (3)按同一活度法测得碳饱和Fe液中Sn与碳的活度相互作用系数与温度的关系: ~*ε_C~(Sn)=-27170/T+20.07.~*e_C~(Sn)=-51.29/T+0.041 (4)求得炼钢温度范围内,Fe基稀溶液中Sn与碳的活度相互作用系数与温度的关系: e_C~(Sn)=-194/T+0.151.e_(Sn)~C=-1810/T+1.39 (5)用Ag浴等Sn活度分配平衡法测得1550℃ Fe液中Sn与碳的一阶、二阶活度相互作用系数: e_(Sn)~C=0.12 e_C~(Sn)=0.016 γ_(Sn)~C=0
关键词:
Fe-C-Sn
,
C-Sn interaction
,
solubility method
,
iso-activity method
周谦莉
,
杜挺
金属学报
测定了1300,1400,1500℃温度下,在铁液中Sb对碳的溶解度的影响,碳的溶解度随Sb量的增加而减小,推算出碳饱和铁液中Sb与C的相互作用系数与温度的关系。 ＊e_C~(Sb)=11.309/T+0.0025 ＊e_(Sb)~C=128.023/T-0.0219 Fe基稀溶液中Sb与C的相互作用系数与温度的关系: e_C~(Sb)=14.204/T+0.025;e_(Sb)~C=120.541/T+0.227 ε_C~(Sb)=ε_(Sb)~C=6026.75/T+11.958 估算出1600℃时＊e_C~(Sb)=0.0085,e_C~(Sb)=0.033,e_(Sb)~C=0.295,ε_C~(Sb)=ε_(Sb)~C=15.36。结果表明,相互作用系数随温度的变化不明显。
关键词:
Fe-C-Sb溶液
,
C-Sb interaction
,
solubility method
,
iso-activity method
ZHOU Qianli DU Ting Central Iron and Steel Research Institute
,
Ministry of Metallurgical Industry
,
Beijing
,
China DU Ting Senior Engineer
,
Laboratory No.16
,
Central Iron and Steel Research Institute
,
Ministry of Metallurgical Industry
,
No.76 Xueyuannanlu
,
Beijing
,
China
金属学报(英文版)
The influence of Sb on the C solubility in liquid Fe was measured under 1300,1400 and 1500℃.The C solubility decreases with the increase of Sb content in liquid Fe.The tem- perature dependences of the first order interaction coefficients in C-saturated liquid Fe were determined as follows: *e_C~(Sb)=11.309/T+0.0025 *e_(Sb)~C=128.023/T-0.0219 The temperature dependences of interaction coefficients between Sb and C in dilute liquid Fe were given to be: e_C~(Sb)=14.204/T+0.025 e_(Sb)~C=120.541/T+0.227 ε_C~(Sb)=ε_(Sb)~C=6026.75/T+11.958 The interaction coefficients at 1600℃ are *e_C~(Sb)=0.0085,e_C~(Sb)=0.033,*e_(Sb)~C=0.295, ε_C~(Sb)=ε_(Sb)~C=15.36.The first order interaction coefficients vary slightly with the temperature.
关键词:
Fe-C-Sb solution
,
null
,
null
,
null
