摘要
通过透射电镜衍射及能谱分析，在稀土硼铝共渗初期的渗层中，检测到了稀土，但没有找到稀土化合物，渗层主要由Ｆｅ２Ｂ相组成，其中夹杂有少量Ｆｅ２３（Ｃ，Ｂ）６，ＡｌＦｅ３Ｃｘ，Ｆｅ３Ａｌ，ＦｅＳｉ２等化合物并存在富Ａｌ区。对共渗初期硼化物的形成进行了分析，解释了由于Ａｌ、Ｓｉ化合物的形成阻碍了位错的运动以及稀土的晶界强化、位错强化和固溶强化等是稀土硼铝共渗层性能提高的主要原因。
The rare earth element was found in initial layer of rare earth B Al permeation by TEM and EDAX,but without rare earth compound. The layer was mainly composed of Fe 2B with less Fe 23 (C,B) 6, AlFe 3C x ,Fe 3Al and FeSi 2 compound ect, and there was concentrated Al in the layer. The boride form at initial stage of rare earth B Al permeation was analyzed. The property of layer would have been increased because of the formation of Al, Si compound.
出处
《中国有色金属学报》
EI
CAS
CSCD
北大核心
1998年第A01期66-69,共4页
The Chinese Journal of Nonferrous Metals
基金
哈尔滨市留学回国人员基金
关键词
稀土硼铝共渗
相组成
渗层
化学热处理
rare earth B Al permeation phase composition strengthening
