Influence of Casting Conditions on Tribological Properties of A390.0 Alloy

Piątkowski, J.; Wieszała, R.; Gontarczyk, A.

doi:10.1515/afe-2016-0057

Cited by 3 publications

(5 citation statements)

References 7 publications

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“…The factor determining the possibility of using different types of gypsum is their setting time, i.e. the period in which mass formation is possible without affecting its properties after the process [1,9,10].…”

Section: Introductionmentioning

confidence: 99%

“…In technological application, it is particularly important to maintain good plasticity of the molding sand until the element is shaped, and after its rapid crystallization. Earlier gypsum binding may lead to damage of the warp grain binding bridges and deterioration of the mold or core strength [1,9,10].…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, it depends mainly on the phase composition of the raw material and the method of preparation of the masses. It is important for the quality of the gypsum mass to evenly mix all ingredients to thoroughly wet them with water [1,9,10].…”

Section: Introductionmentioning

confidence: 99%

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Archives of Foundry Engineering

Granat,

Paduchowicz,

Dziedzic

et al. 2020

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The research paper presents the results of testing the strength and technological properties of molding sand with gypsum binder, the bonding process proceeded: naturally or conventionally. The tests included mass containing (parts by weight): 78 pbw. Grudzeń-Las quartz sand, 22 pbw. plaster gypsum "Dolina Nidy" and 9 pbw. water. Measurements of compressive strength, shear, tensile and bending as well as permeability and looseness were carried out on standard cylindrical samples kept in the air for 1 -96 hours or dried at 110 oC for 1 -8 hours. The results of the analysis were analyzed in connection with the mass structure and construction binding bridges warp grains observed with a scanning microscope (SEM). The influence of drying intensity on the bonding process and related mass properties has been demonstrated, especially from the point of view of the possibility of selection and / or intensification of a specific curing method for use in the production of gypsum binger molds and cores.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Archives of Foundry Engineering

Granat,

Paduchowicz,

Dziedzic

et al. 2020

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“…Gypsum strength also depends mainly on the method of preparing utility mortars, e.g. by reducing water added to gypsum [8][9].…”

Section: Introductionmentioning

confidence: 99%

Archives of Foundry Engineering

Paduchowicz,

Stachowicz,

Baszczuk

et al. 2019

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The paper presents the preliminary results of research on determining the possibilities of using available on the market commercial gypsum kinds as a binder for foundry moulding and core sandmixes. Construction gypsum and plaster gypsum, finishing coat and jewelry casting gypsum were tested. Elemental composition of gypsum kinds were carried out using a scanning electron microscope (SEM) with EDS/EDX probe, their crystal structure and phase composition was determined by analyzing the results of X-ray diffraction measurements (XRD) and thermogravimetric studies (TG-DTA). Evaluation of the mechanical properties of selected materials was carried out at the tensile strength test of the dog-bone samples after initial hardening of gypsum mortar at 25 °C for 5 h and drying at 110 °C for 24 hours. The impact of the properties of the used commercial gypsum kinds on the possibility of their use as a valuable binders in the manufacture of the foundry sandmixes for moulds and cores was evaluated. Construction gypsum and finishing coat have the highest tensile strength. Plaster gypsum and finishing coat have the longest setting time. In all tested types of gypsum, the initial water loss during heating occurs at a temperature of about 200 °C. The lowest valuable properties as a binder for sand moulding mixtures has jewelry casting gypsum mass.

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“…Life cycle of coatings can be easily measure by wear tests. Thus, the complex parts can be produced for a lower cost owing to the design flexibility of the soft materials [12][13][14][15][16][17][18][19][20]. In this study, 8 wt.% Y2O3 stabilized zirconia powders (YSZ) were coated onto T6 heat treated aluminum alloys surface with plasma spraying method and the wear resistance values of these coated samples were compared with the uncoated ones.…”

Section: Introductionmentioning

confidence: 99%

Friction and Wear Properties of Plasma Sprayed YSZ/Ni-Cr-Al Coated 6063-T6 Aluminum Alloy

Erzi

Dışpınar

Yılmaz

2017

Archives of Foundry Engineering

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In this study T6 heat treated 6063 aluminum alloys were used as substrate material. In order to form a bond between the substrate and the main coating, all samples were coated with Ni-Cr-Al powders. 8 wt% Yttria Stabilized Zirconia powders (YSZ) were coated with plasma spray technique. Thickness of YSZ was 150 m and bond coating was 36 m. XRD and SEM-EDS analyses were performed to characterize the coating layers. These YSZ coated and uncoated samples were subjected to wear testing under different spindle speed, loading and working distance. Wear test results were compared with the kinetic friction coefficients and weight loss values. Wear marks on YSZ coated and uncoated samples were investigated by SEM analysis. By coating with plasma spray technique, the wear resistance of Al alloys was increased without changing the friction coefficient. It was found that spindle speed had significant effect over the wear properties than the load applied. By YSZ coating, wear properties were increased 10 times.

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Influence of Casting Conditions on Tribological Properties of A390.0 Alloy

Cited by 3 publications

References 7 publications

Archives of Foundry Engineering

Archives of Foundry Engineering

Archives of Foundry Engineering

Friction and Wear Properties of Plasma Sprayed YSZ/Ni-Cr-Al Coated 6063-T6 Aluminum Alloy

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