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您的检索式：作者名="Remzi Varol"
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| 1 | Comparison of a commercial powder and a powder produced from Ti–6Al–4V chips and their effects on compacts sintered by the sinter-HIP method显示文摘The present paper is related to the conversion of Ti–6Al–4V chips into powder and investigates the usability of the produced powder in powder metallurgy applications. In this regard, a disc-milling process was applied to Ti–6Al–4V chips and the obtained powder was subsequently compacted. The compacted samples were sintered by the sinter hot isostatic pressing (sinter-HIP) method at 1200°C under high vacuum, their mechanical properties and microstructure were investigated and compared with those of commercial powder compacts subjected to the same preparation processes. The results showed that the produced powder exhibits greater flowability and higher apparent density than the commercial powder. However, the sintered products prepared from the commercial powder exhibited a higher relative density, lower porosity, and, as a result, greater flexural strength compared with the sintered compacts prepared from the produced powder. In addition, transgranular fracture was greater in the sintered products of the commercial powder. The microstructural studies revealed that the sintered products made from both the commercial and the produced powders consisted of α- and β-phase but contained more α-phase. All of the examined properties were found to be substantially affected by the particle size of the powders. | Mustafa Ustundag Remzi Varol | 2019 | International Journal of Minerals,Metallurgy and Materials2019，26，7： | 2 |
| 2 | 焊接前后热处理变量对焊接Rene41合金组件应变时效裂纹的影响显示文摘镍基高温合金广泛用于制作发动机喷嘴和涡轮盘部件,这种材料在抗氧化和腐蚀方面有特殊的性质,并且在高温时有较高、较宽的力学性能。许多镍基高温合金由具有面心立方结构的固溶强化奥氏体γ相基体、较多的与基体紧密相连的γ’沉淀相和由各形貌的分布于晶内和晶界的碳化物组成。 | Ramazan Kayacan Remzi Varol Oclay Kimilli | 2015 | 金属材料研究2015，41，3： | 2 |
| 3 | Comprehensive analysis of pulsed plasma nitriding preconditions on the fatigue behavior of AISI 304 austenitic stainless steel显示文摘This study aims to draw an exact boundary for microstructural and mechanical behaviors in terms of pulsed plasma nitriding conditions.The pulsed plasma nitriding treatment was applied to AISI 304 austenitic stainless steel at different temperatures and durations.Results reveal that nitriding depth increased as process temperature and duration increase.The nitriding depth remarkably increased at 475℃for 8 h and at 550℃for 4 h.An austenite structure was transformed into a metastable nitrogen-oversaturated body-centered tetragonal expanded austenite(S-phase)during low-temperature plasma nitriding.The S-phase was converted to CrN precipitation at 475℃for 8 h and at 550℃for 4 h.Surface hardness and fatigue limit increased through plasma nitriding regardless of process conditions.The best surface hardness and fatigue limit were obtained at 550℃for 4 h because of the occurrence of CrN precipitation. | Okan Unal Erfan Maleki Remzi Varol | 2021 | International Journal of Minerals,Metallurgy and Materials2021，28，4： | 2 |
| 4 | Influence of Electromagnetic Fields on Bone Fracture in Rats: Role of CAPE显示文摘Objective To study the effects of radiation emitted by mobile phones on bone strength and caffeic acid phenethyl ester (CAPE) on the changes induced by radiation. Methods Forty-eight Sprague-Dawley rats were divided into five groups. Rats in the control group (first group) were left within the experimental setup for 30 min/day for 28 days without radiation exposure. Nine hundred MHz radiation group was broke down into 2 subgroups (group 1/2). Both subgroups were exposed to radiation for 28 days (30 min/day). The next group was also divided into 2 subgroups (group 3/4). Each was exposed to 1800 MHz of radiation for 28 days (30 min/day). The third and fifth groups were also treated with CAPE for 28 days. Treatment groups received ip caffeic acid phenethyl ester (10 μmol/kg per day) before radiation session. Bone fracture was analyzed. Results Breaking force, bending strength, and total fracture energy decreased in the irradiated groups but increased in the treatment groups. Conclusion Radiation and CAPE can significantly improve bone. | EKREM CICEK OSMAN GOKALP REMZI VAROL GOKHAN CESUR | 2009 | Biomedical and Environmental Sciences2009，22，2： | 1 |
| 5 | Size Effects of Recovered Ti-6Al-4V Alloy Scrap by Conventional P/M Techniques显示文摘 | Mustafa Ustundag Mehmet Fahri Sarac Remzi Varol | 2018 | 材料科学与工程(中英文B版)2018，8，3： | 0 |
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