Corrosion Effects on Fatigue Behavior of Zn-Cr+3 and Zn Flake Coated M8 DIN 933 Bolts
نویسندگان
چکیده
In this study, fatigue behavior of Zn-Cr+3 and zinc flake coated bolts was investigated experimentally by considering corrosion effects. Fatigue tests were conducted on M8x50x1.25 8.8 DIN 933 at normal corroded conditions force amplitudes between 2.35 5.36 kN test frequency 75 Hz. A part subjected to salt atmosphere for corrosion. According the Wöhler curves obtained from before corrosion, showed 1.55 times higher life compared Zn-Cr+3. After that difference increased 2.10 coating. Moreover, found be ineffective crack initiation region. For both coatings conditions, cracks seen initiate thread roots.
منابع مشابه
AN INVESTIGATION ON FATIGUE AND FATIGUE CORROSION BEHAVIOR OF Cr-Si SPRING STEEL AFTER Zn-Ni ELECTROPLATING USING WEIBULL STATISTICAL MODEL
Compression springs were prepared from Cr-Si high strength spring steel and coated with pure Zn and ZnNi by electroplating process. The effect of baking after electroplating as well as applying an electroless nickel interlayer on the fatigue and fatigue corrosion of the springs was investigated. The results were analyzed using weibull statistical model. A considerable improvement (8%) in fati...
متن کاملEffect of Hydroxyapatite on the Mechanical Properties and Corrosion Behavior of Mg-Zn-Y Alloy
Mg-Zn-Y alloys with a long period stacking ordered (LPSO) phase are potential candidates for biodegradable implants; however, an unfavorable degradation rate has limited their applications. Hydroxyapatite (HA) has been shown to enhance the corrosion resistance of Mg alloys. In this study, Mg97Zn₁Y₂-0.5 wt% HA composite was synthesized and solution treated at 500 °C for 10 h. The corrosion behav...
متن کاملRapid solidification behavior of Zn-rich Zn–Ag peritectic alloys
Rapid solidification experiments, including laser remelting, melt-spinning and wedge casting, were carried out to investigate the rapid solidification behavior of Zn-rich Zn–Ag peritectic alloys containing up to 9.0 at% Ag. For comparison, Bridgman solidification experiments of the same alloys were also carried out for growth velocities ranging from 0.02 to 4.82 mm/s, which were lower than that...
متن کاملShot peening effects on corrosion behavior of Hydroxyapatite coated AISI
The effect of several Almen intensities of shot peening on the corrosion behavior, surface roughness, micro hardness profiles, and residual stresses of stainless steel AISI 316 L were investigated. Hydroxyapatite coating (HA) were applied to shot peened materials to improve their corrosion resistance. The corrosion behaviour were studied using potentiodynamic polarization. The electrochemical t...
متن کاملZn uptake behavior of rice genotypes and its implication on grain Zn biofortification
Understanding Zn uptake dynamics is critical to rice grain Zn biofortification. Here we examined soil Zn availability and Zn uptake pathways as affected by genotype (high-grain Zn varieties IR69428 and IR68144), Zn fertilization and water management in two pot experiments. Results showed significant interactions (P < 0.05) between genotypes and Zn fertilization on DTPA (diethylenetriaminepentaa...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Sakarya University Journal of Science
سال: 2021
ISSN: ['1301-4048', '2147-835X']
DOI: https://doi.org/10.16984/saufenbilder.796745