摘要
利用扫描电镜结合能谱分析,研究了Fe-Bi合金中Bi的析出行为以及MnS夹杂物对合金中Bi析出的影响。结果表明:Fe-0. 2%Bi合金从1600℃随炉冷却分别至1450、1150和800℃时水淬,含Bi相在晶内、晶界均有析出。而随炉冷却至室温时,含Bi相在晶界附近析出。合金基体中MnS夹杂物可作为含Bi相异质析出的有效核心。
The bismuth precipitation behavior in Fe-Bi alloy and the effect of MnS inclusion on bismuth precipitation were investigated by SEM equipped with EDS. The results show that Bi-phase is found both in grains and grain boundaries in Fe-0.2% Bi alloy,when the tested alloy cooled from 1600 ℃ in the furnace are quenched in water at 1450,1150 and 800 ℃,respectively. However,the Bi-phase precipitated at the grain boundary when the tested alloys are cooled from 1600 ℃ to room temperature in the furnace. The MnS inclusion in the alloy matrix can act as the effective nuclei of heterogeneous precipitated Bi-phase.
作者
魏宿铜
张帅
彭红兵
汪晓勇
陈超杨
张瑶瑶
唐尧
王宁
Wei Sutong;Zhang Shuai;Peng Hongbing;Wang Xiaoyong;Chen Chaoyang;Zhang Yaoyao;Tang Yao;Wang Ning(School of Metallurgical and Materials Engineering, Jiangsu University of Science and Technology, Zhangjiagang Jiangsu 215600, China)
出处
《金属热处理》
CAS
CSCD
北大核心
2019年第3期74-77,共4页
Heat Treatment of Metals
基金
国家自然科学基金(51704127)
博士启动基金(120140006)
校区青年基金(ZJGQN2015003)
江苏省本科生创新训练项目(201713991011X)
关键词
Fe-Bi合金
BI
MNS
析出
Fe-Bi alloy
bismuth
manganese sulfide
precipitation
