张康侯
,
陈藜莉
金属学报
采用X射线衍射和金相显微分析方法研究了Gd-Pd-Pt三元系中含0—33at。-％Gd的区域,测定了它的室温和700℃等温截面。在该二截面上都分别存在5个单相区(固溶体Pd(Pt)或Pt(Pd),GdPd_3,GdPd_2,GdPt_2和GdPt_5),7个二相区(Pd(Pt)+GdPd_3,Pd(Pt)+GdPt_?,GdPd_3+GdPd_2,GdPd_2+GdPt_2,GdPt_2+GdPd_3,GdPt_2+GdPt_5和GdPd_3+GdPt_5),3个三相区(Pd(Pt)+GdPt_5+GdPd_3,GdPt_5+GdPd_3+GdPt_2和GdPd_3+GdPd_2+GdPt_2)。未发现任何新的三元金属间化合物。
关键词:
Gd-Pd-Pt三元系
,
isothermal section
,
room temperature section
张敏
,
欧阳义芳
,
袁改焕
,
唐轶媛
,
祝金明
,
沈剑韵
,
梁建烈
稀有金属
利用X射线粉末衍射法(XRD),扫描电子显微镜(SEM)和能谱分析(EDX)等方法测定了Zr-Cr-Cu三元系700℃等温截面. 结果表明,此截面由10个单相区、18个两相区和9个三相区组成.第3组元Cr的加入,导致高温CuZr相共析分解温度下降,在700℃时形成稳定的三元相τ.研究确定体系中富锆角和富铜角不存在三元化合物.富锆区合金由ZrCr2、(α-Zr)和CuZr23相构成.富铜区合金由Cr、Cu和CusZr3相构成.
关键词:
相图
,
Zr-Cr-Cu
,
等温截面
G.J. Zhou
,
S. Jin
金属学报(英文版)
The isothermal section of Fe-Ni-Zr ternary system at 1198K was experimentally determined using diffusion triple technique together with scanning electron microscopy (SEM) and electron probe microanalysis (EPMA). The results indicate that there are seven binary intermetallic phases, Fe2Zr, FeZr2, NiZr2, NiZr, Ni10Zr7, Ni7Zr2, and Ni5Zr, found in the ternary system, the binary compounds NiZr2 and FeZr2 show a homogeneity range and form a continuous solid solution, namely (Fe, Ni)Zr2. Five three-phase sections, γ(Fe,Ni) + Ni7Zr2 + Ni5Zr, γ(Fe,Ni) + Ni7Zr2 + Ni10Zr7, γ(Fe,Ni) + Fe2Zr + Ni10Zr7, (Fe,Ni)Zr2 + Fe2Zr + Ni10Zr7, and (Fe,Ni)Zr2 + NiZr + Ni10Zr7, exist in the isothermal section. No ternary compound is observed.
关键词:
Fe-Ni-Zr
,
null
,
null
CHEN Rongzhen ZHANG Hanxing ZHENG Jianxuan Guangxi University
,
Nanning
,
ChinaHE Hanping Guangxi Research Institute of Nonferrous Metals and Geology
,
Nanning
,
China CHEN Rongzhen
,
Professor
,
Department of Physics of Guangxi University
,
Nanning
,
Guangxi 530004
,
China
金属学报(英文版)
The 410℃ isothermal section of the phase diagram of Al-Cu-Sb ternary system has been de- termined by means of X-ray powder diffraction method and electron probe microanalysis. The section determined consists of 12 single-phase regions,21 bi-phase regions and 10 tri-phase regions.
关键词:
Al-Cu-Sb ternary system
,
null
,
null
ZHANG Ning
,
Centrall Iron and Steel Research Institute
,
Ministry of Metallurgical Industry
,
Beijing. ChinaLUO Yang
,
San Huan New Material Research and Development Center
,
Academia Sinica
,
Beijing
,
China
金属学报(英文版)
The microstructures of both as-cast and homogenized Nd-Fe-B ternary alloys have been studied. The stable phase regions existing in Nd-Fe-B ternary system at room temperature have been established by the microzone composition analysis and the phase identification. Based on the obtained results, an isothermal section of Nd-Fe-B ternary system at room temperature was drawn.
关键词:
phase diagram
,
null
,
null
