CHEN Niug
,
YU Zongsen University of Science and Technology Beijing
,
Beijing
,
China professor
,
Department of Materials Physics
,
University of Science and Technology Beijing
,
Beijing 100083
,
China
金属学报(英文版)
Si segregation was observed in the vacancy condensation pits,formed by supersaturated vacancies beneath the oxidation layer of Al-0.35wt-%Si alloy,by optical microscopy,X- ray photoelectron spectroscopy and microhardness tests.This phenomenon could only be explained by vacancy-Si complex inducing no...
关键词:
non-equilibrium segregation
,
null
,
null
,
null
,
null
王凯
,
王民庆
,
徐庭栋
材料科学与工艺
为确定304L钢中P的偏聚特征,分析了Briam在俄歇能谱(AES)下得到的磷晶界偏聚浓度.研究表明,经1100℃固溶1 h、水淬后的304L不锈钢,不仅在700℃恒温时效过程中出现磷的晶界偏聚浓度峰值,并在500、550、600、650、700℃分别恒温时效100 h后,600℃处发现磷的晶界偏聚...
关键词:
晶界
,
非平衡偏聚
,
磷
,
304L不锈钢
,
回火脆性
花晓燕
,
郭长庆
,
韩继炜
,
石安君
材料热处理学报
介绍了将Fe-Cr-B合金1050℃×30 min奥氏体化后经水冷、空冷和炉冷3种不同的冷却速度处理后对其显微组织和韧性的影响.采用光学显微镜、SEM、EDS和XRD对热处理后的组织进行了观察和分析.结果表明,奥氏体化后不同的冷却速度对基体组织的形貌没有产生明显的影响,并且,在晶界上呈连续分布的、粗...
关键词:
Fe-Cr-B合金
,
冷却速度
,
显微组织
,
析出相
,
非平衡偏聚
CHU Youyi ZHANG Sanhong HE Xinlai KE Jun(T.Ko) University of Science and Technology Beijing
,
China CHU Youyi Professor
,
The Nonferrous Metals Society of China
,
Room 602
,
B12
,
Fuxing Road
,
Beijing 100814
,
China
金属学报(英文版)
In consideration of the local equilibrium among vacancies,solute atoms and vacancy-solute atom complexes and the influence of equilibrium grain boundary segregation,theoretical dy- namic formulas for non-equilibrium grain boundary segregation of solute have been derived on the basis of the vacancy-d...
关键词:
solute
,
null
,
null
,
null
P. Wu
金属学报(英文版)
The development of non-equilibrium segregation of boron at grain boundaries in Fe-40%Ni alloy during continuous cooling process was experimentally observed with boronParticle Tracking Autoradiography (PTA) and Transmission Electron Microscopy(TEM). The samples with 10ppm boron were cooled at 2℃/s to...
关键词:
boron
,
null
,
null
