A high-efficiency diffusion-multiple approach was employed to map the phase diagram of the Nb-Cr-Ti ternary system which is critical for the design of niobium silicide-based composites. These composites have high potential as a replacement for Ni-base superalloys for jet engine applications. The ...
采用真空非自耗电弧熔炼法制备了两种系列的 Laves 相 Cr-Nb-Si(Al) 合金,利用扫描电镜 (SEM),能谱 仪 (EDS),Vickers 硬度计及万能力学试验机研究了合金的显微组织,力学性能及强韧化机理.结果表明:随着 Al 含量不断增加,合金 Cr-45Nb-xAl(x=0, 7.5, 17.5) 的显微组织由初生相 Cr2Nb+共晶 Cr2Nb/Nb ...
A thermodynamic model of the Z-phase Cr(V, Nb)N Precipitation of large Z-phase particles, Cr(V, Nb)N, replacing fine MX carbonitrides, Nb(C, N) or V(N, C), has recently been identified as a major cause f... HK Danielsen,J Hald - 《Calphad Computer Coupling of Phase Diagrams ...
Phase Diagram and Phase Equilibrium Studies on Ultra High Temperature Alloys of Nb-Si-Ti Due to their high melting temperatures, low densities and excellent high-temperature strengths, Nb-Si-Ti-based ultra high temperature alloys shows great po... JS Wang,YW Kang,CR Li - 《Materials Science ...
The phases in the alloys have been calculated using the PandatTM software program at different temperatures using calculated Nb–Cr–Si phase diagrams. This is a preview of subscription content, log in via an institution to check access. Similar content being viewed by others Oxidation behavior ...
niobiumrheniumphase equilibriaAn isothermal cross-section of phase equilibria diagram of Cr-Nb-Re system has been constructed at 1375 K using the method of... YV Balykova,SV Nikolaev,EY Kerimov,... - 《Moscow University Chemistry Bulletin》 被引量: 8发表: 2013年 The Nb-Ni-Re (Niobium-Nick...
It is shown from experimental tests on alloys in the Cr ― Nb ― C system in the region of the (Cr) ― (Nb) ― (NbC) subsystem at the melting (crystallization) temperatures that there are two nonvariant four-phase equilibria of congruent type: L E (Nb) + (Nb 2 C) + (NbCr 2...
Effect of thermomechanical treatment on microstructure and properties of Cu-Cr-Zr-Ag alloy The effects of thermomechanical treatment on the properties and microstructure of Cu-Cr-Zr alloy and Cu-Cr-Zr-Ag alloy were investigated. Ag addition impro... Haofeng,Xie,Xujun,... - 《Rare Metals》 ...
CALPHAD(CALculation of PHAse Diagram)技术是目前非常成熟且用途极为广泛的相图评估和计算方法,它不仅是材料动力学,显微组织演变计算模拟的热力学平台,而且能够广泛地应用于新材料的设计与研制.Cu,Fe,Nb,Ni,Si,Cr,Ti等是Al基合金中的主要合金元素或添加元素.为了设计铝基合金成分,优化制备工艺,并有效地提高合金性能...
摘要: This paper reports on the phase diagram of the quaternary system of carbon-iron-nitrogen-niobium alloys.关键词: Experimental/ carbon iron alloys niobium alloys nitrogen phase diagrams/ carbon-iron-nitrogen-niobium alloys quaternary system phase diagram CFeNNb/ A8130B Phase diagrams of metals ...