材料热处理中子散射研究  

Recent Neutron Scattering Study on Heat Treatment of Materials

作　　者：徐平光[1] 友田陽 

机构地区：[1]茨城大学大学院理工学研究科

出　　处：《热处理》2006年第4期1-7,共7页Heat Treatment

摘　　要：作为新一代微观结构表征技术,中子散射正广泛应用于材料科学、物质科学、生物科学等诸多学科领域。本文仅就其在钢铁热处理领域的应用作一简要综述,包括热膨胀/收缩特性、扩散转变、马氏体转变、回复与再结晶,还涉及奥氏体预变形对铁素体转变的影响、马氏体BCT晶体结构在回火过程中的轴比变化、热应力与相变残余应力等,指出在新一代中子源建成后中子衍射技术将得到进一步广泛应用和快速发展。As a new generation of crystallographic characterization technique, the neutron scattering is being widely applied to materials science, substance science, biology science and so on. This review focuses on the application of neutron scattering to the heat treatment of steels, including thermal expansion/contraction behavior, diffusional transformation, martensite transformation, recovery and recrystallization. The influence of austenite predeformation on ferrite transformation, change in the axial ratio of BCT martensite with tempering, and thermal or transformation residual stresses are also described. It is expected that the neutron diffraction will get more rapid development and wider application after the establishment of new-generation neutron beam source.

关 键 词：中子散射 晶体点阵 残余应力 纳米结构 铁素体转变 回火马氏体 奥氏体不锈钢 

分 类 号：TG156.9[金属学及工艺—热处理]