influence of isothermal exposure on
The influence of microstructure on the isothermal and
The isothermal and cyclic-oxidation behavior of the intermetallic Ti48Al-2Cr (at. ) alloy were studied at 800°C in air. Emphasis was placed on the effect of microstructures in a range relevant for practical applications i.e. duplex near gamma nearly lamellar and fully lamellar obtained by various heat treatments. The oxidation kinetics of the intermetallic alloy showed initially the
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Microthermal and Isothermal Biological Effects under
Microthermal and Isothermal Biological Effects under Microwave Exposure André Vander Vorst I. INTRODUCTION Rapid technological advances in electronics electro-optics and computer science have set the stage for an unprecedented drive toward the improvement of existing medical devices and for the development of new ones. At the same time safety
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THE INFLUENCE OF AN ISOTHERMAL ANNEALING PROCESS
P. PIETRUSIEWICZ et al. THE INFLUENCE OF AN ISOTHERMAL ANNEALING PROCESS ON THE STRUCTURE 157–162 THE INFLUENCE OF AN ISOTHERMAL ANNEALING PROCESS 0.01° and an exposure time of 7 s. In order to confirm the amorphous structure
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Influence of isothermal and cyclic heat treatments on the
The adhesion of thermal barrier coatings subjected to isothermal oxidation thermal cycling fatigue and thermal shock was studied. The adhesion strength and fracture characteristics were found to vary with heat treatment type. The influence of interdiffusion between bond coat and substrate was studied on TBCs deposited on two different substrates.
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The influence of silicon and yttrium on isothermal scaling
During the isothermal exposure of nominally Fe 24 Cr 24 Ni east alloys at 1000°C a silicon content above 0.8 reduces the rate of scaling by providing additional sites for the lateral growth of the Cr 2 O 3 layer. Yttrium gives rise to the formation of Fe 9 Y particles which disrupt the continuity of the Cr 2 O 3 scale. The beneficial
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Effect of Prolonged Isothermal Exposure on Elevated
isothermal exposure on FCP behavior of alloy 783 at elevated temperature under time-dependent condition and thereby evaluate the influence of isothermal exposure on SAGBO resistance of alloy 783. Finally a general model for characterization of FCP behavior of alloy 783 subjected to
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THE INFLUENCE OF ISOTHERMAL ANNEALING ON
the strong influence of local thermal degradation on the re-sulting mechanical behaviour. 4. Conclusion The determination of local mechanical properties such as hardness and impact toughness of the studied welded joint of CB2 steel revealed significant differences in the individual locations in different experimental states after thermal exposure.
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Microstructure Evolution of AlSi10Mg(Cu) Alloy Related to
The results show that isothermal exposure has a significant influence on the mechanical properties and corrosion resistance. Tensile strength is more sensitive to the higher exposure temperature while the corrosion resistance is greater affected by the lower exposure temperature and shorter time.
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Influence of sample preparation method on isothermal
Jul 01 2011 · Free Online Library Influence of sample preparation method on isothermal studies during compatibility screening of ofloxacin correlation with DSC data.(Research Article Report) by "Archives of Pharmacy Practice" Health general Biocompatibility Excipients Health aspects Ofloxacin
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Influence of heat exposure time on isothermal degradation
Request PDF Influence of heat exposure time on isothermal degradation of plasma sprayed CoNiCrAlY coatings In this work the thermal degradation behavior of selected CoNiCrAlY coatings has
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Influence of Isothermal Heat Treatment on Porosity and
to sustain exposure to high temperatures and how the accompanying changes affect the thermal conductivity of the TBC. In view of its importance the influence of high temperature exposure in terms of sintering of the ceramic-layer pore closure etc. has been well-studied in case of both APS 28. 30 and EB-PVD 31. 33 TBCs.
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Influence of temperature transients on the hot workability
In contrast isothermal deformation at 1177 °C/1093 °C preserves the fine equiaxed microstructure through dynamic recrystallization of the γ grains. Cracking observed in specimens deformed at 1093 °C and 1.0 s-1 after exposure at 1321 °C has been attributed to the low rate of globularization as well as the occurrence of shear
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THE INFLUENCE OF ISOTHERMAL ANNEALING ON
the strong influence of local thermal degradation on the re-sulting mechanical behaviour. 4. Conclusion The determination of local mechanical properties such as hardness and impact toughness of the studied welded joint of CB2 steel revealed significant differences in the individual locations in different experimental states after thermal exposure.
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Microstructure Evolution of AlSi10Mg(Cu) Alloy Related to
The results show that isothermal exposure has a significant influence on the mechanical properties and corrosion resistance. Tensile strength is more sensitive to the higher exposure temperature while the corrosion resistance is greater affected by the lower exposure temperature and shorter time.
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How to Optimize OIT TestsPerkinElmer
age throughout their lifetime due to exposure to environmental elements such as heat oxygen light and radiation. Aging causes isothermal temperature the gas is switched from inert purge to O 2 or air purge. Influence of isothermal temperature on OIT for LLDPE.
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THE INFLUENCE OF ISOTHERMAL ANNEALING ON
the strong influence of local thermal degradation on the re-sulting mechanical behaviour. 4. Conclusion The determination of local mechanical properties such as hardness and impact toughness of the studied welded joint of CB2 steel revealed significant differences in the individual locations in different experimental states after thermal exposure.
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Mar 15 2007 · Isothermal crystallization of amorphous Sb x Te films capped with ZnS-SiO 2 or GeCrN layers was performed using in situ heating within a transmission electron microscope. The effect of the electron beam of the microscope on the crystallization process was investigated. It was found that electron irradiation during the crystallization process leads to a continuous increase in the crystal
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Influence of isothermal aging on σ precipitation in super
Jul 28 2010 · The time-temperature-transformation (TTT) curve of the 00Cr25Ni7Mo4N duplex stainless steel was obtained with a Formastor-digital thermal dilatometer and the influence of isothermal aging on σ precipitation was studied by metallographic observation X-ray diffraction (XRD) and transmission electron microscopy (TEM). The results show that the decomposition of ferrite phase is accompanied
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The objective of this study is to examine the effect of prolonged isothermal exposure on FCP behavior of alloy 783 at elevated temperature under time-dependent condition and thereby evaluate the influence of isothermal exposure on SAGBO resistance of alloy 783.
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(PDF) Experimental investigation of the bond-coat rumpling
But for isothermal experiments at 1100 C and 960 C with a hold time of 100 hours no apparent rumpling could be observed (Fig. 9(b c)). In case of isothermal exposure at 1175 C for 100 hours the BC developed voids about 10-15 µm across near the interface
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The influence of silicon and yttrium on isothermal scaling
During the isothermal exposure of nominally Fe 24 Cr 24 Ni east alloys at 1000°C a silicon content above 0.8 reduces the rate of scaling by providing additional sites for the lateral growth of the Cr 2 O 3 layer. Yttrium gives rise to the formation of Fe 9 Y particles which disrupt the continuity of the Cr 2 O 3 scale. The beneficial
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subsequent thermal exposure. Microstructural changes which occur in both the HAZ regions during isothermal expositions are generally related to additional precipitation and coarsening of secondary phase particles. Thermodynamic calculations were performed in order to predict equilibrium phases in thermally aged weldments (see Fig. 4).
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Microthermal and Isothermal Biological Effects under
Microthermal and Isothermal Biological Effects under Microwave Exposure André Vander Vorst I. INTRODUCTION Rapid technological advances in electronics electro-optics and computer science have set the stage for an unprecedented drive toward the improvement of existing medical devices and for the development of new ones. At the same time safety
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Influence of sample preparation method on isothermal
Jul 01 2011 · Free Online Library Influence of sample preparation method on isothermal studies during compatibility screening of ofloxacin correlation with DSC data.(Research Article Report) by "Archives of Pharmacy Practice" Health general Biocompatibility Excipients Health aspects Ofloxacin
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Microthermal and Isothermal Biological Effects under
Microthermal and Isothermal Biological Effects under Microwave Exposure André Vander Vorst I. INTRODUCTION Rapid technological advances in electronics electro-optics and computer science have set the stage for an unprecedented drive toward the improvement of existing medical devices and for the development of new ones. At the same time safety
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Comparison of Different Sample Preparation Techniques in
isothermal exposure to be well revealed. Based on TEM imaging of samples prepared by jet electro-polishing technique as shown in FIG. 1 it was found that the internal precipitation of ordered γ ′ phase within β phase occurred during prolonged term isothermal exposure FIG. 1 (a). In contrast Microsc Microanal 9(Suppl 2) 2003
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age throughout their lifetime due to exposure to environmental elements such as heat oxygen light and radiation. Aging causes isothermal temperature the gas is switched from inert purge to O 2 or air purge. Influence of isothermal temperature on OIT for LLDPE.
Chat OnlineInfluence of electron beam exposure on crystallization of
Mar 15 2007 · Isothermal crystallization of amorphous Sb x Te films capped with ZnS-SiO 2 or GeCrN layers was performed using in situ heating within a transmission electron microscope. The effect of the electron beam of the microscope on the crystallization process was investigated. It was found that electron irradiation during the crystallization process leads to a continuous increase in the crystal
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Jan 29 2021 · A comparative study of chemical composition structure and mechanical properties (Rockwell hardness HRC) is conducted for pseudo-β-titanium alloys for structural purposes (VT47 VT35 Timet LCB) after isothermal ageing over wide ranges of temperature and exposure times. Diagrams are plotted providing summarized hardness values for VT47 and Timet LCB alloys.
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the strong influence of local thermal degradation on the re-sulting mechanical behaviour. 4. Conclusion The determination of local mechanical properties such as hardness and impact toughness of the studied welded joint of CB2 steel revealed significant differences in the individual locations in different experimental states after thermal exposure.
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