Cu Precipitation Dynamics in an Fe-1.18%Cu Alloy
The precipitation of copper during aging at 600℃ in high-purity Fe-Cu alloy was examined by means of transmission electron microscopy (TEM).Nano-scale copper-rich clusters with a B2-like structure were observed during heat treatment.These micro structural features play an important role in precipitation strengthening.In addition,the precipitation process has been analyzed in terms of the evolution of microstructure by a Monte Carlo method.A description of the coherent precipitation of copper in iron,based on a vacancy diffusion mechanism,thermally activated jump frequencies and cohesive energy are discussed in order to deal with simultaneous precipitation of metastable and stable phases in Cu-containing steel during aging.This analysis gives an estimation of the precipitation dynamics,as well as the evolution of Cu precipitates across a wide range of temperatures.
Cu precipitation Dynamics Fe-Cu alloy
Huiping Ren Haiyan Wang Zongchang Liu
School of Materials and Metallurgy,Inner Mongolia University of Science and Technology,Baotou 014010 School of Materials and Metallurgy,Inner Mongolia University of Science and Technology,Baotou 014010
国际会议
The 6th Cross-Strait Conference on Advanced Engineering Materials (第六届海峡两岸工程材料研讨会)
南京
英文
22-27
2011-11-08（万方平台首次上网日期，不代表论文的发表时间）