Dry Wear Behaviour of the New ZK60/AlN/SiC Particle Reinforced Composites

Sager, Abdulmuaen; Esen, İsmail; Ahlatçı, Hayrettin; Türen, Yunus

doi:10.3390/ma15238582

Cited by 8 publications

(3 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The literature reports that X-ray diffraction of the material after wear tests on Hank's solution leads to nucleation and reorientation of martensite plates in β and martensite alloys, respectively [42]. In contrast to those presented under the dry wear test of the alloy under study, the plates appear to be more strongly reoriented after a phase transformation to the martensite phase under applied stress during testing [43]. This and the oxide layer formation improved the corrosive wear resistance compared with the dry wear resistance.…”

Section: Wear Test Resultsmentioning

confidence: 89%

Examination of the Corrosion Behavior of Shape Memory NiTi Material for Biomedical Applications

et al. 2023

Self Cite

View full text Add to dashboard Cite

In this study, corrosion and wear tests of NiTi alloy (Ni 55%–Ti 45%) samples, known as shape memory alloy, which offer a shape recovery memory effect between memory temperatures ranging from 25 to 35 °C, have been carried out. The standard metallographically prepared samples’ microstructure images were obtained using an optical microscope device and SEM with an EDS analyzer. For the corrosion test, the samples are immersed with a net into the beaker of synthetic body fluid, whose contact with the standard air is cut off. Electrochemical corrosion analyses were performed after potentiodynamic testing in synthetic body fluid and at room temperature. The wear tests of the investigated NiTi superalloy were carried out by performing reciprocal wear tests under 20 N and 40 N loads in a dry environment and body fluid. During wear, a 100CR6-quality steel ball of the counter material was rubbed on the sample surface for a total of 300 m with a unit line length of 13 mm and a sliding speed of 0.04 m/s. As a result of both the potentiodynamic polarization and immersion corrosion tests in the body fluid, an average of 50% thickness reduction in the samples was observed in proportion to the change in the corrosion current values. In addition, the weight loss of the samples in corrosive wear is 20% less than that in dry wear. This can be attributed to the protective effect of the oxide film on the surface at high loads and the effect of reducing the friction coefficient of the body fluid.

show abstract

Section: Wear Test Resultsmentioning

confidence: 89%

Examination of the Corrosion Behavior of Shape Memory NiTi Material for Biomedical Applications

et al. 2023

Self Cite

View full text Add to dashboard Cite

show abstract

“…The initiation of the wear process in the wear tests occurred at the uppermost OL layer of the oxidised samples. The wear tests were carried out at an average temperature of 24 • C, with a load of 20 N [32][33][34][35][36], a sliding speed of 0.5 m/s, a total sliding distance of 10,000 m, and an ideal humidity level of 45% RH. A 4140-quality steel disc with 59 HRC hardness was used as the counter material determined.…”

Section: Methodsmentioning

confidence: 99%

Effect of Oxidation Process on Mechanical and Tribological Behaviour of Titanium Grade 5 Alloy

Saier,

Esen,

Ahlatci

et al. 2024

Materials

Self Cite

View full text Add to dashboard Cite

In this study, microstructural characterization, mechanical (tensile and compressive) properties, and tribological (wear) properties of Titanium Grade 5 alloy after the oxidation process were examined. While it is observed that the grey contrast coloured α grains are coaxial in the microstructures, it is seen that there are black contrast coloured β grains at the grain boundaries. However, in oxidised Titanium Grade 5, it is possible to observe that the α structure becomes larger, and the number and density of the structure increases. Small-sized structures can be seen inside the growing α particles and on the β particles. These structures are predicted to be Al-Ti/Al-V secondary phases. The nonoxidised alloy matrix and the OL layer exhibited a macrolevel hardness of 335 ± 3.21 HB and 353 ± 1.62 HB, respectively. The heat treatment increased Vickers microhardness by 13% in polished and etched nonoxidised and oxidised alloys, from 309 ± 2.08 HV1 to 352 ± 1.43 HV1. The Vickers microhardness value of the oxidised sample was 528 ± 1.74 HV1, as a 50% increase was noted. According to their tensile properties, oxidised alloys showed a better result compared to nonoxidised alloys. While the peak stress in the oxidised alloy was 1028.40 MPa, in the nonoxidised alloy, this value was 1027.20 MPa. It is seen that the peak stresses of both materials are close to each other, and the result of the oxidised alloy is slightly better. When we look at the breaking strain to characterise the deformation behaviour in the materials, it is 0.084 mm/mm in the oxidised alloy; In the nonoxidised alloy, it is 0.066 mm/mm. When we look at the stress at offset yield of the two alloys, it is 694.56 MPa in the oxidised alloy; it was found to be 674.092 MPa in the nonoxidised alloy. According to their compressive test properties, the maximum compressive strength is 2164.32 MPa in the oxidised alloy; in the nonoxidised alloy, it is 1531.52 MPa. While the yield strength is 972.50 MPa in oxidised Titanium Grade 5, it was found to be 934.16 MPa in nonoxidised Titanium Grade 5. When the compressive deformation oxidised alloy is 100.01%, in the nonoxidised alloy, it is 68.50%. According to their tribological properties, the oxidised alloy provided the least weight loss after 10,000 m and had the best wear resistance. This material’s weight loss and wear coefficient at the end of 10,000 m are 0.127 ± 0.0002 g and (63.45 ± 0.15) × 10−8 g/Nm, respectively. The highest weight loss and worst wear resistance have been observed in the nonoxidised alloy. The weight loss and wear coefficients at the end of 10,000 m are 0.140 ± 0.0003 g and (69.75 ± 0.09) × 10−8 g/Nm, respectively. The oxidation process has been shown to improve the tribological properties of Titanium Grade 5 alloy.

show abstract

“…Silicon carbide-reinforced aluminum-silicon (SiC/Al-Si) matrix composites have the advantages of low density, high specific strength, high dimensional stability, and high thermal conductivity and have been widely used in aerospace, automotive, electronics, and other fields [ 1 , 2 , 3 ]. The distribution of reinforcement in metal matrix composites has a significant effect on the strength, plasticity, and crack initiation of the composites [ 4 , 5 , 6 ].…”

Section: Introductionmentioning

confidence: 99%

Nano-Phase and SiC–Si Spherical Microstructure in SiC/Al-50Si Composites Solidified under High Pressure

et al. 2023

View full text Add to dashboard Cite

The formation of coarse primary Si is the main scientific challenge faced in the preparation of high-Si Al matrix composites. The SiC/Al-50Si composites are prepared by high pressure solidification, which allows the primary Si to form a SiC–Si spherical microstructure with SiC, while the solubility of Si in Al is increased by high pressure to reduce the proportion of primary Si, thus enhancing the strength of the composites. The results show that the high melt viscosity under high pressure makes the SiC particles almost “fixed” in situ. The SEM analysis shows that the presence of SiC in the growth front of the primary Si will hinder its continued growth and eventually form SiC–Si spherical microstructure. Through aging treatment, a large number of dispersed nanoscale Si phases are precipitated in the α-Al supersaturated solid solution. The TEM analysis shows that a semi-coherent interface is formed between the α-Al matrix and the nanoscale Si precipitates. The three-point bending tests shows that the bending strength of the aged SiC/Al-50Si composites prepared at 3 GPa is 387.6 MPa, which is 18.6% higher than that of the unaged composites.

show abstract

Dry Wear Behaviour of the New ZK60/AlN/SiC Particle Reinforced Composites

Cited by 8 publications

References 32 publications

Examination of the Corrosion Behavior of Shape Memory NiTi Material for Biomedical Applications

Examination of the Corrosion Behavior of Shape Memory NiTi Material for Biomedical Applications

Effect of Oxidation Process on Mechanical and Tribological Behaviour of Titanium Grade 5 Alloy

Nano-Phase and SiC–Si Spherical Microstructure in SiC/Al-50Si Composites Solidified under High Pressure

Contact Info

Product

Resources

About