航空材料学报2011，Vol.31Issue(2)：72-78,7.DOI:10.3969/j.issn.1005-5053.2011.2.014
Fe3Si金属间化合物高温抗氧化性能研究
Oxidation Resistance at High Temperature of Fe3Si Intermetallic
摘要
Abstract
Fe3Si intermetallic was prepared using vacuum are melting. The oxidation products of Fe3Si intermetallic were characterized by XRD, SEM, EPMA. Meanwhile,Fe3Si oxidation resistances were studied at temperature 800℃ and 900℃. The results show that the oxidation resistance of Fe3Si intermetallie is better than AISI 304 stainless steel at temperature 800℃ and 900℃. The oxidizing dynamics curves of Fe3Si was complex curves conforming to parabolic rule and linear rule at temperature 800℃. But at temperature 900℃ it was single parabolic curves. The initial growth mechanism of oxide layer was diffusion process of Si at temperature 800℃, and then with the crumbling of oxide layer, the growth mechanism was diffusion process of Si. The process of the oxidation kinetics was controlled by diffusion process at 900℃. Diffusion process of Si played a leading role in growth mechanism of oxide layer, with a mass transfer of Fe moved away from SiO2 of film.关键词
Fe3Si金属间化合物/氧化动力学/高温抗氧化Key words
Fe3Si/ oxidation kinetic/ high temperature oxidation resistance分类
矿业与冶金引用本文复制引用
周琦,贾建刚,赵红顺,刘建军,吴海涛..Fe3Si金属间化合物高温抗氧化性能研究[J].航空材料学报,2011,31(2):72-78,7.基金项目
甘肃省自然科学基金(1014RJZA006) （1014RJZA006）
