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Control of Secondary Phases by Solution Treatment in a N-Alloyed High-Mn Cryogenic SteelXiao-Jiang Wang1,2,Xin-Jun Sun2,Cheng Song1,Shuai Tong2,Luo-Jin Liu2,Huan Chen2,Wei Han2,Feng Pan11. Department... phases of the steels have significant effects on the microstructure and mechanical properties, making controlling these secondary phases important. The control of MnS inclusions and AlN precipitates......
mechanisms of the Mg-8.2 Gd-4.6 Y-1.5 Zn-0.4 Zr(wt%) alloy with long-period stacking ordered(LPSO),β’ and γ type phases were systematically studied.The results show that the LPSO with lamellar and block structures forms near the grain boundaries.The grains are clearly refined,and the 18 R LPSO phase is oriented along the extrusion direction after extrusion.Some particles also precipitate from......
mechanisms of the Mg-8.2 Gd-4.6 Y-1.5 Zn-0.4 Zr(wt%) alloy with long-period stacking ordered(LPSO),β’ and γ type phases were systematically studied.The results show that the LPSO with lamellar and block structures forms near the grain boundaries.The grains are clearly refined,and the 18 R LPSO phase is oriented along the extrusion direction after extrusion.Some particles also precipitate from......
and quantitative analysis of chemical composition. It also revealed that P atoms were dissolved in the c matrix to a relatively high degree at the temperature that γ’ and γ’’ phases began to precipitate...Re-recognition of the Effects of Phosphorus and Boron on the γ’’ and γ’ Phases in IN718 AlloyAn-Wen Zhang1,2,Yang Li1,Sha Zhang1,Fang Liu1,Wei-Hong Zhang1,Lian-Xu Yu1,Wen-Ru Sun11. Institute of Metal......
rolling; dislocation; T1 precipitate 1 Introduction Al-Cu-Li alloys are extensively used for aerospace applications due to their high specific strength, good damage tolerance and excellent property... that the plate-like T1 phases prefer to precipitating on dislocations and subgrain boundaries in CR and RTR samples after being aged. 4 Discussion 4.1 Microstructural parameters and flow stress of rolled alloys......
the type and morphology of the non-equilibrium eutectic phases in grain boundaries. Key words: Al-Zn-Mg-Cu alloy; microstructure; non-equilibrium eutectic phase; solidification precipitate Al-Zn-Mg-Cu系铝合金,又... the once solidification precipitate type, morphology and the microdistribution of alloying elements, were investigated. And then the formation process and mechanism of different solidification......
grain boundary precipitate free zone and coarse equilibrium η phases in the matrix. Key words: 7055 aluminum alloy; transfer time; mechanical properties; grain boundary precipitate free zone... to transgranular shear and intergranular fracture, which is closely associated with coarse equilibrium η phases in the matrix and wider grain boundary precipitate free zone. References [1] WILLIAMS......
Characterizing and modeling the precipitation of Mg-rich phases in Al 5xxx alloys aged at low temperaturesGaosong Yi1,Weizhi Zeng1,Jonathan D.Poplawsky2,David A.Cullen3,Zhifen Wangd4,Michael... of chemical potential and multi-class precipitates number evolution was adopted to predict the multiphase precipitation process in the Al-Mg binary system. The overall trend of precipitate radius and number......
of the floating zone. One serious problem during the single crystal growth, precipitates of secondary phases, was discussed from the following four parts: precipitates from the raw materials and preparation process... technique; single crystal growth; rare earth compound; precipitate 1 Introduction In the past few years, much attention has been paid to ternary R2PdSi3 intermetallic compounds (R=Rare earth) which show......
-quantitative relationship between precipitates and the electrical resistivity was established. Key words: Al-Mg-Si alloy; metastable phases; electrical resistivity; aging; precipitate 1 Introduction 6000 series... aging at 175 °C, with one kind of precipitate β″ phases. The contribution of precipitates, which accounts for 10%-20% of the resistivity variation in dozens of nanometers of spacing, can be estimated semi......
