Thermodynamic analysis of the iron-copper system I: The stable and metastable phase equilibria

Chuang, Ying-Yu; Schmid, Rainer; Chang, Y. A.

doi:10.1007/bf02664905

Cited by 144 publications

(42 citation statements)

References 11 publications

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“…Besides, the Fe-Cu binary system has been researched repeatedly as well. [20][21][22][23][24] No intermetallics exists in the Fe-Cu system. And the solubility of Fe in (Cu) or the solubility of Cu in a-Fe is less than 1.0 at.% below 700°C.…”

Section: Binary Systemsmentioning

confidence: 99%

450 °C Isothermal Section of the Zn-Fe-Cu Ternary System

Peng

Wang

et al. 2011

J. Phase Equilib. Diffus.

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The 450°C isothermal section of the Zn-Fe-Cu ternary system was experimentally determined by Scanning Electron Microscopy (SEM) coupled with Energy Dispersive X-ray Spectrometer (EDS)/ Wave Dispersive X-ray Spectrometer (WDS), and X-ray Diffractometer (XRD). Eight three-phase regions exist in the 450°C isothermal section of the Zn-Fe-Cu ternary system. No new ternary compound was found in the system. The d Fe phase (FeZn 10 ) can be in equilibrium with all phases except the a-Fe, (Cu) and b¢ (CuZn) phase. Experimental results indicated that the solubility of Cu in the C (Fe 3 Zn 10 ) and the d Fe phase reaches as high as 17.9 and 15.2 at.%, respectively.

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Section: Binary Systemsmentioning

confidence: 99%

450 °C Isothermal Section of the Zn-Fe-Cu Ternary System

Peng

Wang

et al. 2011

J. Phase Equilib. Diffus.

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“…Due to the limited mutual solubility of iron and copper, this system forms a two-phase material in which each phase is comprised purely of a single constituent. [14,15] An optical micrograph of this alloy is shown in Figure 4 along with the electron backscattered data depicting the grain structure for each phase. Following a procedure similar to the one outlined in Section IV, we have identified those features and attributes that are included in the digital material and initialized values for the attributes in a reference state.…”

Section: Application To a Model Two-phase Alloymentioning

confidence: 99%

An accelerated methodology for the evaluation of critical properties in polyphase alloys

Dawson

Miller

Han

2005

Metall Mater Trans A

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A system for more rapidly determining the strength and stiffness of polyphase alloys is presented that is based on a digital representation of the material structure. Working in concert with the representation are a number of digital tools and probes that are analogues of testing equipment and instrumentation of traditional laboratory methods. These are combined with nontraditional mechanical testing methods to complete the system. An example of an Fe-Cu system is used to illustrate the methodology.

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“…[24,25] For an ϳ50 at. pct composition, the undercooling required for liquid-phase separation is only 17 K. [24] Earlier experimental studies on the submerged miscibility gap in iron-copper melts [28,35,36] demonstrate the ease of accessing the miscibility gap. Figure 9(b) also illustrates the possibility of the alloy liquid separating into two liquids (L 1 and L 2 ) due to the submerged miscibility gap.…”

Section: B Interface Microstructurementioning

confidence: 99%

“…Due to the flat liquidus, the existence of a metastable liquid-phase immiscibility in undercooled melts is expected and experimentally confirmed in this system. [23][24][25][26] Undercooled Fe-Cu liquid separates into droplets of iron and copper. Microstructural analysis of Fe-Cu alloys solidified at different cooling rates [26] indicates that liquid-phase separation is a common feature in most rapid solidification processes involving iron and copper.…”

Section: Introductionmentioning

confidence: 99%

Characterization of a continuous CO2 laser-welded Fe-Cu dissimilar couple

Phanikumar

Manjini²,

Dutta

et al. 2005

Metall Mater Trans A

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Continuous CO 2 laser welding of an Fe-Cu dissimilar couple in a butt-weld geometry at different process conditions is studied. The process conditions are varied to identify and characterize the microstructural features that are independent of the welding mode. The study presents a characterization of the microstructure and mechanical properties of the welds. Detailed microstructural analysis of the weld/base-metal interface shows features that are different on the two sides of the weld. The iron side can grow into the weld with a local change in length scale, whereas the interface on the copper side indicates a barrier to growth. The interface is jagged, and a banded microstructure consisting of iron-rich layers could be observed next to the weld/Cu interface. The observations suggest that solidification initiates inside the melt, where iron and copper are mixed due to convective flow. The transmission electron microscopy (TEM) of the weld region also indicates the occasional presence of droplets of iron and copper. The microstructural observations are rationalized using arguments drawn from a thermodynamic analysis of the Fe-Cu system.

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Thermodynamic analysis of the iron-copper system I: The stable and metastable phase equilibria

Cited by 144 publications

References 11 publications

450 °C Isothermal Section of the Zn-Fe-Cu Ternary System

450 °C Isothermal Section of the Zn-Fe-Cu Ternary System

An accelerated methodology for the evaluation of critical properties in polyphase alloys

Characterization of a continuous CO2 laser-welded Fe-Cu dissimilar couple

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