Fe-0.64at％Ti二元合金系统低温氮化内耗峰谱的研究
来源期刊：中南大学学报(自然科学版)1987年第2期
论文作者：何克坚
文章页码：185 - 189
关键词：黑色金属合金； 钛添加合金； 弛豫内耗峰； 渗氮； 时效； 高温； 复合点缺陷； 脱溶转变
Key words：ferrous alloys； titanium additions； relaxation internal friction peaks； nitriding； aging； high temperature； point defect complex； precipitation transformation
摘 要：系统地测量了400℃氯化的Fe-0.64Ti合金系统不同热处理制度下异常内耗峰的行为.提出了230℃峰的Ti-N2仨缺陷模型,指出了100—150℃峰与高温时效过程中在{100}α面上形成富钛、氮的预沉淀相紧密相关.
Abstract: The internal friction spectra of Fe-0.64 at% Ti binary system nitrided at 400℃ and the behaviour of the abnormal internal friction peaks during various treatments has been investigated systematically. Measurements have shown that there are two abnormal peaks, one is situated around 230℃, the other ranges from 100℃ to 150℃. A Ti-N2 triplet model and the diffusion pathes of nitrogen atoms have been proposed to explain the 230℃ peak. The diffusion and aggregation of titanium atoms are responsible for the enhancement of the 230℃ peak and the suppression of the 100-150℃ peak during the high temperature aging treatment.
