Yazar "Karaaslan, Ahmet" için listeleme
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Cooling Slope Casting of AA7075 Alloy Combined with Reheating and Thixoforging
Güler, Kerem Altuğ; Kısasöz, Alptekin; Özer, Gökhan; Karaaslan, Ahmet (Elsevier, 2019)Cooling slope casting has been applied to aluminium casting alloys for producing ingots with non-dendritic microstructure. Semi-solid forming of the AA7075 was studied via cooling slope casting, reheating and thixoforging ... -
Effect of RRA Heat Treatment on Corrosion and Mechanical Properties of AA7075
Özer, Gökhan; Karaaslan, Ahmet (Wiley, 2019)In this study, a retrogression process (R) has been applied to AA7075 at 180, 240, and 370°C for 15, 30, 90, and 120 min. After the retrogression, reaging treatment (RA) was reapplied with T6 conditions (120°C for 24 ... -
Effect of Secondary Phases on 475°C Embrittlement of 1.4462 and 1.4501 Duplex Stainless Steels at Short-term Heat Treatment Conditions
Kısasöz, Alptekin; Özer, Gökhan; Karaaslan, Ahmet (IOP Publishing Ltd, 2019)Duplex stainless steels (DSSs) are classified according to their chemical composition. Also, the formation of the secondary phases can be defined as a main problem of the DSSs. In this study, decomposition of chromium ... -
Effects of Retrogression and Reaging Heat Treatment on the Microstructure, Exfoliation Corrosion, Electrical Conductivity, and Mechanical Properties of AA7050
Özer, Gökhan; Kaya, Işık; Karaaslan, Ahmet (Wiley, 2019)The effects of different retrogression times and temperatures on the microstructure, electrical conductivity, exfoliation corrosion (EXCO), and hardness of the 7050 aluminium alloy were compared with the T6 and ... -
Effects of RRA Heat Treatment on the Exfoliation Corrosion (EXCO), Intergranular Corrosion (IGC), and Electrical Conductivity of AA7075 Alloy
Özer, Gökhan; Karaaslan, Ahmet (Wiley, 2019)The corrosion sensitivity of the AA7075 alloy is related to the distribution, size, continuous, or discontinuous network structure and electrochemical behavior of the grain boundary precipitates. In addition, changes in ... -
Influence of The Phase Balance and Cooling Conditions on The Microstructure and Corrosion Behavior of Solution-treated 1.4462 Duplex Stainless Steel
Yalçıner, Gülüzar; Özer, Gökhan; Kısasöz, Alptekin; Karaaslan, Ahmet (IOP Publishing, 2019)In this study, effect of cooling rate on the microstructure and corrosion behavior of the solutiontreated 1.4462 alloy was investigated. 1.4462 alloy was heat-treated at 1000 °C, 1120 °Cand 1200 °C for different duration ... -
Investigation of the Effects of Different Retrogression and Re-Aging Parameters Applied to the 7075 Alloy on the Micro-Arc Oxidation Process
Yılmaz, Mustafa Safa; Özer, Gökhan; Şahin, Orhan; Karaaslan, Ahmet (World Scientific, 2021)In this paper, retrogression and re-aging (RRA) heat treatment was applied to 7075 aluminum alloy in T6 condition at di®erent times (30 and 90 min) and temperatures (180 C and 240 C). While RRA heat treatments increase ... -
Investigation of the Relationship Between Intergranular Corrosion and Retrogression and Reaging in the AA6063
Özer, Gökhan; Kısasöz, Alptekin; Karaaslan, Ahmet (Wiley Online Library, 2019)AA6063 was heat treated with different retrogression temperatures and durations, and the effect of heat treatment conditions on the microstructure, hardness, electrical conductivity, intergranular corrosion (IGC) and ... -
Precipitation of Carbides in A Nickel-Based Cast Heat-Resistant Alloy During Thermal Exposure: Evolution of Microstructure, Hardness and Corrosion Properties
Öztürk, Kubilay; Kısasöz, Alptekin; Özer, Gökhan; Karaaslan, Ahmet (De Gruyter, 2023)Ni-based G-NiCr28W alloy, which is widely preferred in high-temperature applications, has an austenite matrix as well as carbides dispersed in the structure. The morphology of the carbides in the structure varies depending ... -
A Study on the Effects of Different Heat-Treatment Parameters on Microstructure–Mechanical Properties and Corrosion Behavior of Maraging Steel Produced by Direct Metal Laser Sintering
Özer, Gökhan; Karaaslan, Ahmet (Wiley, 2020)Herein, direct aging (aged‐490 °C/6 h) and solution heat treatment and subsequent aging (SHT‐940 °C/2 h + 490 °C/6 h) heat treatments are applied to maraging steel (MS1) produced by direct metal laser sintering (DMLS) ...
