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sintering process of olybdenum ang composites fe cr

DILATOMETRIC INVESTIGATION OF FeMnCrMo PM STEELS

DILATOMETRIC INVESTIGATION OF FeMnCrMo PM STEELS

chemical composition of sintering atmosphere; the highest values were recorded for steels sintered in a nitrogen atmosphere. This effect is probably connected with a process of nitrides creation on the surface of steel. CONCLUSIONS This work has contributed to studies of sintering FeMnCrMoC steels in chemically different atmospheres.

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Effect of Molybdenum Additions on the Structure of TiB2Cited by 1

Effect of Molybdenum Additions on the Structure of TiB2

Aug 22, 2018· Up to10%cash back· To examine the effect of molybdenum additions on the structurization of TiB 2 (FeMo) composite materials, differential thermal analysis of the samples with 8, 13, and 20 wt.% Mo in the metallic phase was carried out and their structure was examined after sintering. It is shown that molybdenum is an active component in the systems with 8 and 13 wt.%

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The sintering of an FeCrNiBC powder  Request PDF

The sintering of an FeCrNiBC powder Request PDF

This paper describes the sintering of prealloyed FeCrNiBC alloy components produced by metal injection moulding. The solidus temperature of this alloy was determined to be about 1150

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Investigation of Solid Solution Hardening in Molybdenum

Investigation of Solid Solution Hardening in Molybdenum

factors are chemical stability of the alloying elements during the sintering process in a hydrogen atmosphere, density after sintering and sufficient deformability after sintering in order to produce samples with a relative density >99.5%. According to these requirements molybdenum alloys with 0.53.0% chromium, 0.5 5.0% rhenium, 0.5

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Influence of alloying elements on the sinteringCited by 21

Influence of alloying elements on the sintering

Dec 15, 2015· The matrix composition influence was evaluated by fixing the MoS 2 content to 5.7 wt.% and making additions of elements such as Ni, Mo and C or additions of prealloyed powders such as Fe 45 Si, FeCr and Fe 3 P. The iron was also totally substituted by different prealloyed ironbased powders such as, Fe 1.5 Mo, Fe 1.5 Cr, Fe 0.6 P and AISI 316L stainless steel.

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Commercial sintering of chromium powder metallurgy (PM

Commercial sintering of chromium powder metallurgy (PM

Jun 15, 2020· Figure 1 Dewpoint vs. N2/H2 atmosphere composition for the sintering of FL5208, FL5305, and SS316 [78]. As hydrogen is the more expensive constituent of a nitrogen/hydrogen sintering atmosphere, most component manufacturers use just enough during sintering to accomplish the oxide reduction process.

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FORMING BEHAVIOUR STUDIES ON INFLUENCE of FeMoCr

FORMING BEHAVIOUR STUDIES ON INFLUENCE of FeMoCr

methods to pack the powders and reduce the porosity.The Fe,Mo and Cr powders were sintered in an electric muffle furnace in the temperature 1200 0 C for a period of 1 hour and cooled to room temperature in the furnace itself.The sintered preforms were

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Hardenable Powder Metal Steels

Hardenable Powder Metal Steels

sintering were investigated. The solidification range of alloys of MnNiCrMoFe and MnCuNi was determined. Alloys with the lowest and narrowest melting range were prepared and atomized in nitrogen. Admixtures of master alloys to wateratomized, forging grade, pure iron powder were sintered at

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Sintering, microstructure, and mechanical properties of PM

Sintering, microstructure, and mechanical properties of PM

30 min before the sintering process. The compositions of the various batches investigated are RESULTS given in Table 1. Alloys B H, were prepared by mixing DTA water atomised Astaloy Mo (Fe 1·5%Mo) with NC100·24 The heating and cooling curves showed a very similar sponge iron powder and the coarser high oxygen ferro trend for both powder

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Powder Pretreatment (prior To Consolidation Or Sintering

Powder Pretreatment (prior To Consolidation Or Sintering

Mar 08, 1996· Abstract The present invention relates to a process for forming a composite strip material without any sintering step. The process includes blending a powdered high conductivity material such as powdered copper with a powdered low thermal expansion phase material such as a nickeliron alloy, compacting the powders to form a green composite

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Preparation and Performance of Sintered Fe2Cu2Mo0.8C

Preparation and Performance of Sintered Fe2Cu2Mo0.8C

Fe2Cu2Mo0.8C powder mixtures were prepared by mixing Fe, Cu and C elemental powders with different forms of Mocontaining powder (pure Mo powder, prealloyed MoFe powder and mechanically alloyed MoFe powder, respectively). The powder mixtures were warm pressed under different pressures and temperatures. Properties of the green compacts and the sintered parts were tested to investigate

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Powder Metallurgy Processes With Heating Or Sintering

Powder Metallurgy Processes With Heating Or Sintering

Abstract A method for manufacturing a molybdenum sputtering target for a back electrode of a CIGS solar cell is provided to minimize thermal activating reaction by employing an electric discharge plasma sintering process. The method for manufacturing a molybdenum sputtering target for a back electrode of a CIGS solar cell comprises the steps

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Sintering behavior of Cr in different atmospheres and its

Sintering behavior of Cr in different atmospheres and its

Copper matrix composites consisting of chromium (Cr) or ferrochrome (CrFe) as strengthening elements and molybdenum disulfide as a lubricant had been sintered in

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Dilatometric investigations of Fe  Cr  Mo  C system

Dilatometric investigations of Fe Cr Mo C system

Dec 21, 2018· Sintering was carried out in a horizontal push rod dilatometer Netzsch 402E at 1120 and 1250°C for 60 min. Heating and cooling rates were 10 and 20°C/min., respectively. After heating, compacts were isothermal sintered at 1120 or 1250°C for 60 minutes an cooled up to 200°C, then isothermally hold for 60 minutes and definitely cooled to the room temperature.

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US20010048887A1  Process for sintering powder metal

US20010048887A1 Process for sintering powder metal

US20010048887A1 US09/769,839 US76983901A US2001048887A1 US 20010048887 A1 US20010048887 A1 US 20010048887A1 US 76983901 A US76983901 A US 76983901A US 2001048887 A1 US2001048887 A1 US 2001048887A1 Authority US United States Prior art keywords sintering microwave powder metal metal powder Prior art date 19971125 Legal status (The legal

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0R6L 6L 6L 1 FHUDPLF

0R6L 6L 6L 1 FHUDPLF

about the sintering rate influence on the sintering start point displacement, relative shrinkage. The activation energy of the sintering process for Mo 0.7W 0.3Si 2 + Si 3N 4 (from 1 to 15 wt.%) are calculated. 2.Materials and methods of researches The cast mixture 70 wt% MoSi 2 and 30 wt% WSi 2 (Mo 0.7W 0.3Si 2) [14], was obtained by the SHS

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Iron/Carbon Composites for Cr(VI) Removal Prepared from

Iron/Carbon Composites for Cr(VI) Removal Prepared from

Dec 06, 2018· Iron/carbon (Fe/C) composites efficiently remove Cr(VI) because of synergistic adsorption and reduction effects. This study uses harmful algal bloom (HAB) biomass and ferric ammonium citrate (FAC) or ferric nitrate as precursors for preparing Fe/Cs with a onepot synthesis. The investigation uniquely differentiates material and performance impacts associated with two iron

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Molybdenum  Plansee

Molybdenum Plansee

Molybdenum. With its unique mechanical and chemical properties, molybdenum is an outstanding material that can meet the most exacting requirements. Because molybdenum possesses a very high melting point, a low coefficient of thermal expansion and a high level of thermal conductivity, it is used in many different industries.

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Properties of High Density CrMo Prealloyed Materials

Properties of High Density CrMo Prealloyed Materials

properties of CrMo prealloyed materials using various compaction and sintering conditions [5~9]. These studies have identified that CrMo prealloyed materials have advantages in properties achievable, sinter hardening response, and dimensional control compared to conventional materials such as FeCu and NiMoCu alloyed steels [10,11].

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Microstructure and properties of FeCoNi1.5CrCu/2024Al

Microstructure and properties of FeCoNi1.5CrCu/2024Al

Jan 13, 2021· They provide the experimental basis for studying HEA particles reinforced metal matrix composites and microwave sintering methods. 2. Experimental. Cu, Co, Fe, Ni, and Cr powder (Hunan 369 Metallurgical Technology Co., Ltd) with the purity of 99.9 wt% and the particle size less than 45 μm were used as raw materials to obtain HEA particles.

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The Sintering Behaviour of FeMnC Powder SystemCited by 11

The Sintering Behaviour of FeMnC Powder System

The Sintering Behaviour of FeMnC Powder System, Correlation between Thermodynamics and Sintering Process, Manganese Distribution and Microstructure Composition, Effect of Alloying Mode Eduard Hryha 1 and Eva Dudrova 2 1 Chalmers University of Technology, Gothenburg 2 Institute of Materials Research, Slov ak Academy of Sciences, Ko ice 1 Sweden

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EFFECTS OF NITROGEN UPTAKE DURING SINTERING ON THE

EFFECTS OF NITROGEN UPTAKE DURING SINTERING ON THE

the temperature and alloying elements (Cr, Mo, C) using the thermodynamic description by Jarl [5]. Simulations were made for a spherical particle (φ = 100 µm) with the composition Fe3Cr0.5Mo0.3C, assuming that single powder particles of Astaloy CrM + 0.3% C are exposed to the sintering atmosphere in an open porosity.

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Sintering behavior of Cr in different atmospheres and itsCited by 7

Sintering behavior of Cr in different atmospheres and its

Dec 14, 2013· Up to10%cash back· Abstract. Copper matrix composites consisting of chromium (Cr) or ferrochrome (CrFe) as strengthening elements and molybdenum disulfide as a lubricant had been sintered in nitrogen and hydrogen atmosphere, respectively. Their morphology and energydispersive Xray spectrometry (EDS) analysis showed that serious interaction occurred between MoS 2 and Cr (or CrFe) particles when the samples were sintered

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DILATOMETRIC INVESTIGATION OF FeMnCrMo PM STEELS

DILATOMETRIC INVESTIGATION OF FeMnCrMo PM STEELS

chemical composition of sintering atmosphere; the highest values were recorded for steels sintered in a nitrogen atmosphere. This effect is probably connected with a process of nitrides creation on the surface of steel. CONCLUSIONS This work has contributed to studies of sintering FeMnCrMoC steels in chemically different atmospheres.

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sintering process of olybdenum ang composites fe cr

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