microstructure evolution and properties tailoring of rheo
Microstructural Design of Advanced Engineering Materials
Jul 31 2013 · When coming to more advanced applications the required properties are becoming more complex and the manufacturer`s desire is to tailor the properties of the material to fit the needs. To let this dream come true insights into the microstructure of materials is crucial to finally control the properties of the materials because the
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Microstructure evolution and mechanical properties of
Abstract Microstructure evolution and mechanical properties of the rheo-processed ADC12 alloy were investigated by means of optical microscopy X-ray diffraction and scanning electron microscopy. Primary dendritic Al of rheo-casting (RC) and rheo-diecasting (RDC) ADC12 alloys are sheared off.
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Microstructural Evolution of ZL104 Aluminum Alloy Semi
In this study ZL104 aluminum alloy supplied in cold rolled state was introduced in recrystallization and partial melting (RAP) process to fabricate semi-solid billets. During the RAP process samples cut from cold rolled ZL104 aluminum plate were heated to different semi-solid temperatures and the effects of isothermal treatment parameters on the microstructures of semi-solid billets were
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Microstructure evolution and mechanical properties of rheo
Dec 01 2016 · Microstructure evolution and mechanical properties of the rheo-processed ADC12 alloy were investigated by means of optical microscopy X-ray diffraction and scanning electron microscopy. Primary dendritic Al of rheo-casting (RC) and rheo-diecasting
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Tailoring Thermoelectric Transport Properties of Ag
The thermal and electrical conductivities as well as the Seebeck coefficients are found to be highly sensitive to the microstructure and its temporal evolution e.g. the number density of Ag-rich precipitates increases by ca. 3 orders of magnitude and reaches (1.68 ± 0.92) 10 24 m –3 upon aging at 380 °C for 6 h which is pronounced
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Microstructure Texture and Mechanical Property Evolution
Additive Manufacturing (AM) is an innovative manufacturing process which offers near-net shape fabrication of complex components directly from CAD models without dies or substantial machining resulting in a reduction in lead-time waste and cost. For example the buy-to-fly ratio for a titanium component machined from forged billet is typically 10-20 1 compared to 5-7 1 when manufactured
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Tailoring the microstructure and mechanical properties of
The effect of melt convection during the solidification of Ti45Al55 alloys was investigated in terms of microstructure evolution and the resulting mechanical properties.
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Rheo-processing of an alloy specifically designed for semi
making process is lacking efficient tailoring of microstructure is hindered and the complete understanding of structure-property relationship to modify or enhance the mechanical properties of the final parts are still to be realised. Therefore there is a significant need to design new alloys specifically for semi-solid state processing to
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Evolution of Microstructure during Shear Alignment in a
May 01 2002 · Evolution of Microstructure during Shear Alignment in a Polystyrene-Polyisoprene Lamellar Diblock Copolymer to the Mechanism of the Shear-Induced Macroscopic Alignment of Diblock Copolymer Melts by a Unique and Newly Developed Rheo–SAXS Combination. Tailoring of the hierarchical structure within electrospun fibers due to
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Densification behavior microstructure evolution and
Mar 12 2020 · The influence of laser processing parameters on the densification behavior microstructure evolution and tensile properties of the SLM-processed composites is addressed. With the increase in laser volume energy density the densification rate increased and reached 99 at a laser speed of 1000 mm/s.
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Chemical Properties of Amorphous Metals Annual Review of
The specific properties of interest depend on the intended application. in the formation of three-dimensional close-packed (A) NC glasses and (B) NC superlattices. TEM images show that by tailoring the solvent Figure 13 TEM cross-section through a 〈111〉-oriented island of 100 Å CdSe NCs. Phase-Field Models for Microstructure
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Structure-property relationships of sheared carbon black
Carbon black suspensions exhibit complex shear-dependent macroscopic properties that are a consequence of the state of the suspension microstructure. In this work the shear-induced microstructure of a model reversible suspension of conductive carbon black in propylene carbonate is measured using simultaneous steady shear rheology and small
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Precise control of versatile microstructure and properties
A deep understanding of the shaping technique is urgently required to precisely tailor the pore structure of a graphene aerogel (GA) in order to fit versatile application backgrounds. In the present study the microstructure and properties of GA were regulated by freeze-casting using an ice crystal template frozen from −10 °C to −196 °C.
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Microstructure Evolution and Properties Tailoring of Rheo
Low-cost heat-resistant Al-Sc-Zr-Fe conductor wires were successfully manufactured by continuous rheo-extrusion process and the mechanical and conductive properties of the materials were analyzed and compared after three different thermo-mechanical treatment methods. The coarse plate-shape Al3Fe phase transformed to small sized rod-like phase after solid solution treatment at 630 degC for 21 h.
Chat OnlineMicrostructure Evolution and Properties Tailoring of Rheo
Microstructure Evolution and Properties Tailoring of Rheo-Extruded Al-Sc-Zr-Fe Conductor via Thermo-Mechanical Treatment Materials (Basel) . 2020 Feb 1313(4) 845. doi 10.3390/ma.
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Precise control of versatile microstructure and properties
A deep understanding of the shaping technique is urgently required to precisely tailor the pore structure of a graphene aerogel (GA) in order to fit versatile application backgrounds. In the present study the microstructure and properties of GA were regulated by freeze-casting using an ice crystal template frozen from −10 °C to −196 °C.
Chat OnlineTailoring the microstructure and mechanical properties of
The effect of melt convection during the solidification of Ti45Al55 alloys was investigated in terms of microstructure evolution and the resulting mechanical properties.
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Tailoring Thermoelectric Transport Properties of Ag
The thermal and electrical conductivities as well as the Seebeck coefficients are found to be highly sensitive to the microstructure and its temporal evolution e.g. the number density of Ag-rich precipitates increases by ca. 3 orders of magnitude and reaches (1.68 ± 0.92) 10 24 m –3 upon aging at 380 °C for 6 h which is pronounced
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Investigation of Microstructure Evolution and Phase
In this work a CuCe alloy was prepared using a directional solidification method at a series of withdrawal rates of 100 25 10 8 and 5 μm/s. We found that the primary phase microstructure transforms from cellular crystals to cellular peritectic coupled growth and eventually changes into dendrites as the withdrawal rate increases. The phase constituents in the directionally solidified
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Di Tie s research works Northeastern University
Di Tie s 30 research works with 422 citations and 4 713 reads including Effects of alloying elements X (Cr Mn Mo Ni Si) on the interface stability of TiC (001)/γ-Fe (001) in TiC/316L
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Microstructure Texture and Mechanical Property Evolution
Additive Manufacturing (AM) is an innovative manufacturing process which offers near-net shape fabrication of complex components directly from CAD models without dies or substantial machining resulting in a reduction in lead-time waste and cost. For example the buy-to-fly ratio for a titanium component machined from forged billet is typically 10-20 1 compared to 5-7 1 when manufactured
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Microstructure and rheology relationships for shear
Rheo- and flow-SANS microstructure measurements of a concentrated colloidal dispersion are reported for experiments made in all three planes during steady shear flow. Figure 3(a b) shows those results from measurements made in the velocity–velocity gradient (1–2) plane of shear. The 2D scattering results are reported for increasing shear
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Chemical Properties of Amorphous Metals Annual Review of
The specific properties of interest depend on the intended application. in the formation of three-dimensional close-packed (A) NC glasses and (B) NC superlattices. TEM images show that by tailoring the solvent Figure 13 TEM cross-section through a 〈111〉-oriented island of 100 Å CdSe NCs. Phase-Field Models for Microstructure
Chat OnlineDi Tie s research works Northeastern University
Di Tie s 30 research works with 422 citations and 4 713 reads including Effects of alloying elements X (Cr Mn Mo Ni Si) on the interface stability of TiC (001)/γ-Fe (001) in TiC/316L
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Materials Free Full-Text Investigation of
Microstructure Evolution and Properties Tailoring of Rheo-Extruded Al-Sc-Zr-Fe Conductor via Thermo-Mechanical Treatment. Journals. Information. For Authors For Reviewers For Editors For Librarians For Publishers For Societies.
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Effects of Pouring Temperature on Microstructure and
6 Wang Y Liu G Fan Z. Microstructural evolution of rheo-diecast AZ91D magnesium alloy during heat treatment. Acta Mater. 200654(3) 689-99. Links 7 Xu C Zhao J Guo A Li H Dai GZ Zhang X. Effects of injection velocity on microstructure porosity and mechanical properties of a rheo-diecast Al-Zn-Mg-Cu aluminum alloy.
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Microstructure evolution and mechanical properties of rheo
Abstract Microstructure evolution and mechanical properties of the rheo-processed ADC12 alloy were investigated by means of optical microscopy X-ray diffraction and scanning electron microscopy. Primary dendritic Al of rheo-casting (RC) and rheo-diecasting (RDC) ADC12 alloys are sheared off.
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Materials Free Full-Text Investigation of
Microstructure Evolution and Properties Tailoring of Rheo-Extruded Al-Sc-Zr-Fe Conductor via Thermo-Mechanical Treatment. Journals. Information. For Authors For Reviewers For Editors For Librarians For Publishers For Societies.
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Ren-guo GUAN Professor (Full) Phd Northeastern
Microstructure Evolution and Properties Tailoring of Rheo-Extruded Al-Sc-Zr-Fe Conductor via Thermo-Mechanical Treatment and the effect of rolling deformation on the microstructure and the
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Microstructure and Rheological Properties of Semi-Solid
The SEED rheocasting process was used to produce semisolid slurries of high strength 7075 aluminum wrought alloys. The effects of the SEED processing parameters on the microstructure of semisolid slurries were studied. The impact of grain refinement on the grain morphology and size was investigated. The rheological properties of semisolid 7075 alloys were characterized at different solid
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