摘要
用热扩散方法,选用Al做中间夹层,在550-650℃,2MPa压力下,真空保温2h制备Ti-Al-304不锈钢复合板.采用扫描电镜（SEM）研究横截面微观结构,使用能谱线扫描分析截面元素分布,利用X射线衍射（XRD）分析断面相组成.研究发现,热扩散方法制备钛钢复合板的最佳温度在550℃附近.此时Al中间夹层不但起到阻止Fe元素向Ti基体中扩散形成Fe-Ti金属间脆性相的作用,又使Al元素和Fe元素形成稳定的扩散层.
A Ti-Al-304 stainless steel composite panel with aluminum(Al)as the interlayer was made by means of the thermal diffusion.The manufacturing process briefly requires a 2hincubation in vacuum system at 2MPa and 550-650℃.The microstructure,distribution of elements,and phases composition of the cross section were studied by the scanning electron microscope(SEM),energy spectrum scan(ESC),and X-ray diffraction(XRD),respectively.The conclusion is that ca.550℃is the best condition for manufacturing Ti stainless steel composite panel through thermal diffusion.Under this condition,the interlayer(Al)can block the diffusion of Fe into Ti matrix,which forms fragile Fe-Ti intermetallic section.Meanwhile,a stable diffusing layer between Al and Fe is formed.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2016年第2期2224-2229,共6页
Journal of Functional Materials
基金
国家自然科学基金资助项目(51165016
51301144)
