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Thermodynamics and phase equilibria for the Fe−C−Cr system in the vicinity of the eutectoid temperature
Springer Science and Business Media LLC - Tập 10 Số 8 - Trang 1119-1127 - 1979
Ramesh C. Sharma, G.R. Purdy, J. S. Kirkaldy
Austenitic solidification mode in austenitic stainless steel welds
Springer Science and Business Media LLC - - 1979
T. Takalo, N. Suutala, T. Moisio
Analysis of nonisothermal transformation kinetics; tempering of iron-carbon and iron-nitrogen martensites
Springer Science and Business Media LLC - Tập 19 - Trang 925-932 - 1988
E. J. Mittemeher, Liu Cheng, P. J. van der Schaaf, C. M. Brakman, B. M. Korevaar
A powerful method for the analysis of solid-state transformation kinetics can be based on non-isothermal analysis where the temperature corresponding to a fixed stage of transformation is measured as a function of heating rate. Adoption of a specific kinetic model is not required for valid application of this method. This removes constraints imposed unnecessarily on so-called Kissinger-like proced...... hiện toàn bộ
Ductile Al-Cu-V amorphous alloys without metalloid
Springer Science and Business Media LLC - Tập 19 - Trang 391-393 - 1988
An-Pang Tsai, Akihisa Inoue, Tsuyoshi Masumoto
The transition from columnar to equiaxed dendritic growth in proeutectic, low-volume fraction copper, Pb−Cu alloys
Springer Science and Business Media LLC - Tập 23 - Trang 1807-1815 - 1992
Shinwoo Kim, R. N. Grugel
Lead, 17.1, 11.2, and 5 volume fraction copper (14, 9, and 4 wt pct Cu) alloys have been directionally solidified at constant growth velocities ranging from 1 to 100 μm s−1. Serially increasing the growth velocity within this range results in a graded microstructural transition from fully columnar, albeit segregated, copper dendrites in a lead matrix to one consisting only of equiaxed grains. The ...... hiện toàn bộ
The stable and metastable Ti-Nb phase diagrams
Springer Science and Business Media LLC - Tập 19 - Trang 2389-2397 - 1988
D. L. Moffat, U. R. Kattner
The phase transformations which occur in the Ti-Nb binary alloy system have been discussed in two recent papers. The phase relationships were investigated by varying alloy composition and thermal history. In this paper, these results are summarized in complete and thermodynamically consistent calculations of the stable and metastable phase diagrams. The calculations of the metastable equilibria ar...... hiện toàn bộ
Formation and stability of a nitride with the structure of beta manganese in Ni-Cr-N ternary system
Springer Science and Business Media LLC - Tập 23 - Trang 1389-1393 - 1992
N. Ono, M. Kajihara, M. Kikuchi
A nitride with the metal-atom arrangement of β manganese, which is designated as π phase, was confirmed to exist as an equilibrium phase in the ternary Cr-Ni-N system. A Cr-40 mass pct Ni binary alloy was nitrided under a pure nitrogen atmosphere at 1523 K to prepare a Cr-40Ni-5N alloy consisting of a nickel-rich face-centered cubic (fcc) γ phase and a dichromium nitride, Cr2N, designated as ε pha...... hiện toàn bộ
Inelastic deformation and dislocation structure of a nickel alloy: Effects of deformation and thermal histories
Springer Science and Business Media LLC - Tập 19 - Trang 2477-2486 - 1988
K. S. Chan, R. A. Page
The inelastic deformation behavior of a nickel-base alloy, B1900 + Hf, has been examined under nonisothermal conditions by performing step temperature tensile tests and thermomechanical cyclic tests. In both cases, the temperature ranges of interest are 538 °C to 760 °C, where the peak strength of γ′occurs, and 760 °C to 982 °C, where static thermal recovery is important. The dislocation structure...... hiện toàn bộ
A short-time diffusion correlation for hydrogen-induced crack growth kinetics
Springer Science and Business Media LLC - Tập 6 - Trang 1485-1498 - 1975
W. W. Gerberich, Y. T. Chen, C. ST. John
Analysis of hydrogen-stress field interactions have led to kinetic criteria for slow crack growth. Using both elastic and plastic stress fields under opening-mode loading, criteria for stage I, II, III growth are developed in terms of the pressure tensor gradient at the crack tip. It is proposed that stage I (stress-intensity dependent) growth kinetics are predominantly controlled by the elastic s...... hiện toàn bộ
The thermodynamic activity of Mn in Pt-Mn alloys in the temperature range 1300 to 1600 °c
Springer Science and Business Media LLC - Tập 12 - Trang 207-211 - 1981
B. K. D. P. RAO, D. R. Gaskell
The thermodynamic activity of Mn in Pt-Mn alloys has been measured in the temperature range 1300 to 1600 °C and the composition range 0.07 ≤ NMn ≤ 0.33 by equilibrating Pt-Mn foils with solid MnO under atmospheres of fixed oxygen pressure. The results obtained differ from those of the two previous investigations of this system. Partial and integral free energies, enthalpies and entropies are deriv...... hiện toàn bộ
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