TY - JOUR T1 - Thermal and Corrosion Properties of Binary Al-Ce alloys TT - İkili Al-Ce Alaşımlarının Termal ve Korozyon Özellikleri AU - Cengiz, Sezgin AU - Azaklı, Yunus AU - Coşan, Kral Ali AU - Ceylan, Ebru AU - Uzunoğlu, Aytekin AU - Tarakçı, Mehmet AU - Gencer, Yücel PY - 2025 DA - July Y2 - 2025 JF - ITU Journal of Metallurgy and Materials Engineering PB - İstanbul Teknik Üniversitesi WT - DergiPark SN - 3062-0406 SP - 31 EP - 36 VL - 2 IS - 2 LA - en AB - In this study, binary Al-xCe (x = 1, 2, 4, 8, 12, and 18 wt.%) alloys were synthesized, and the effect of cerium (Ce) on microstructures, thermal, and corrosion properties was systematically investigated. XRD analyses revealed the presence of α-Al and Al₁₁Ce₃ phases in the alloys. The addition of Ce significantly reduced the coefficient of thermal expansion, decreasing from approximately 28.09 × 10⁻⁶ K⁻¹ to 26.50 × 10⁻⁶ K⁻¹. The addition of Ce, especially at low concentrations, adversely affected the corrosion resistance of Al by introducing structural defects into the matrix. The increase in Ce content in the alloys led to an enhancement in its hardness. KW - Aluminum KW - cerium KW - Al-Ce alloy KW - thermal expansion KW - corrosion N2 - Bu çalışmada, ikili Al-xCe (x = 1, 2, 4, 8, 12 ve 18 ağırlıkça %) alaşımları sentezlenmiş ve seryumun (Ce) mikro yapı, termal ve korozyon özellikleri üzerindeki etkisi sistematik olarak incelenmiştir. XRD analizleri, alaşımlarda α-Al ve Al₁₁Ce₃ fazlarının varlığını ortaya koymuştur. Ce ilavesi, termal genleşme katsayısını önemli ölçüde azaltmış; bu değer yaklaşık 28,09 × 10⁻⁶ K⁻¹'den 26,50 × 10⁻⁶ K⁻¹'ye düşmüştür. Özellikle düşük konsantrasyonlardaki Ce ilavesi, matris içine yapısal kusurlar sokarak Al’nin korozyon direncini olumsuz yönde etkilemiştir. Alaşımlardaki Ce içeriğinin artması ise sertliğinde bir artışa neden olmuştur. CR - Abboud, J., & Mazumder, J. (2020). 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