The isothermal section of the Ni Pt Ta ternary system at 1?173?K was determined by means of the diffusion triple technology and the electron microprobe analysis. The phase relations in this system were studied. Linear...The isothermal section of the Ni Pt Ta ternary system at 1?173?K was determined by means of the diffusion triple technology and the electron microprobe analysis. The phase relations in this system were studied. Linear compound (Ni, Pt) 3Ta with small solubility forming between Ni 3Ta and Pt 3Ta was identified. Four binary compounds, i.e. Pt 2Ta, Ni 2Ta, NiTa and NiTa 2, and four three phase fields, i.e. Pt 2Ta+(Ta)+NiTa 2, Pt 2Ta+NiTa 2+NiTa, Pt 2Ta+(Ni, PT) 3Ta+NiTa and (Ni, Pt) 3Ta+NiTa+Ni 2Ta, were also identified.展开更多
The isothermal sections of the Nb Ti Si ternary system at 1?473?K and 1?373?K were determined by means of diffusion triple technique and electron microprobe analysis. By analyzing the diffusion layers in the diffusion...The isothermal sections of the Nb Ti Si ternary system at 1?473?K and 1?373?K were determined by means of diffusion triple technique and electron microprobe analysis. By analyzing the diffusion layers in the diffusion couples, the titanium silicides and niobium silicides forming in this system were identified. The results show that no ternary compounds formed in the Nb Ti Si ternary system at the test temperatures. The phase transformations occurring on cooling from 1?473?K to 1?373?K were discussed.展开更多
The phase equilibriua in the Ni Re Hf ternary system at 1173K were investigated by means of diffusion triple technique and electron microprobe analysis(EMPA). The experimental results indicate that two ternary interme...The phase equilibriua in the Ni Re Hf ternary system at 1173K were investigated by means of diffusion triple technique and electron microprobe analysis(EMPA). The experimental results indicate that two ternary intermetallics (α and β) and five binary intermetallics (Ni 3Hf, Ni 10 Hf 7, Ni 11 Hf 9, NiHf and NiHf 2) exist in the Ni Re Hf system at 1?173 K. A tentative isothermal section of this system at 1?173 K was constructed on the basis of experimental results. The isothermal section consists of nine three phase regions, five of which are supported by the experimental data.展开更多
文摘The isothermal section of the Ni Pt Ta ternary system at 1?173?K was determined by means of the diffusion triple technology and the electron microprobe analysis. The phase relations in this system were studied. Linear compound (Ni, Pt) 3Ta with small solubility forming between Ni 3Ta and Pt 3Ta was identified. Four binary compounds, i.e. Pt 2Ta, Ni 2Ta, NiTa and NiTa 2, and four three phase fields, i.e. Pt 2Ta+(Ta)+NiTa 2, Pt 2Ta+NiTa 2+NiTa, Pt 2Ta+(Ni, PT) 3Ta+NiTa and (Ni, Pt) 3Ta+NiTa+Ni 2Ta, were also identified.
文摘The isothermal sections of the Nb Ti Si ternary system at 1?473?K and 1?373?K were determined by means of diffusion triple technique and electron microprobe analysis. By analyzing the diffusion layers in the diffusion couples, the titanium silicides and niobium silicides forming in this system were identified. The results show that no ternary compounds formed in the Nb Ti Si ternary system at the test temperatures. The phase transformations occurring on cooling from 1?473?K to 1?373?K were discussed.
文摘The phase equilibriua in the Ni Re Hf ternary system at 1173K were investigated by means of diffusion triple technique and electron microprobe analysis(EMPA). The experimental results indicate that two ternary intermetallics (α and β) and five binary intermetallics (Ni 3Hf, Ni 10 Hf 7, Ni 11 Hf 9, NiHf and NiHf 2) exist in the Ni Re Hf system at 1?173 K. A tentative isothermal section of this system at 1?173 K was constructed on the basis of experimental results. The isothermal section consists of nine three phase regions, five of which are supported by the experimental data.
