Toz Metalurjisi Metoduyla Üretilen Distaloy AE Alaşımlarının Isı Akışı Davranışları

Yıl 2019, Cilt: 34 Sayı: 4, 79 - 84, 31.12.2019

Ayşe Nur Acar

https://doi.org/10.21605/cukurovaummfd.702078

Öz

Alaşımları teknikleri ön alaşımlı, ön karışımlı ve difüzyon-bağlı tozla olmak üzere sınıflandırılır. Bu çalışmada kullanılan Distaloy AE alaşımı Fe, Ni ve Mo alaşım elementleri içeren bir difüzyon-bağlı alaşım çeşididir ve yüksek dayanımlı mikroyapıya sahiptir. Bu çalışmada toz metalürjisi metoduyla üretilen Distaloy AE alaşımlarının sertlik, yoğunluk ve ısıl akışları çalışılmıştır. Bu malzemelerin sertlik ve yoğunluk ölçümleri Brinell sertlik ölçümleri ve Archimedes suyun kaldırma tekniği kullanılmıştır ve Diferansiyel Taramalı Kalorimetre (DSC) cihazı kullanılarak alaşımların ısıl akışları saptanmıştır. Sonuçlar alaşımların SEM fotoğrafları, EDS spektrumlarıyla desteklenmiştir ve ayrıca alaşımların kristal yapıları XRD desenleriyle saptanmıştır.

Anahtar Kelimeler

Distaloy AE, Toz metalurjisi, Isıl akışı, Yüzey karakterizasyonu

Heat Flow Behaviours of Distaloy AE Alloys Produced by Powder Metallurgy

Öz

The alloying techniques are classified with pre-alloyed, pre-mixed and diffusion-bonded powders. Distaloy AE alloy used in this study is type of diffusion-bonded alloy including of Fe, Ni and Mo alloying elements and has high strengthening microstructures. In this study; hardness, density and heat flows distaloy AE samples prepared by powder metallurgy method performed. As hardness and density measurements of these samples, Brinell hardness measurements and Archimedes water displacement technique performed and heat flows of these alloys determined using Differential Scanning Calorimetry (DSC) device. These results supported by SEM images, EDS spectrums of alloys and also, crystal structures of these alloys determined by XRD patterns.

Anahtar Kelimeler

Distaloy AE, Powder metallurgy, Heat flow, Surface characterization

Kaynakça

• 1. Panda, S.S., Singh, V., Upadhyaya, A., Agrawal, D., 2006. Sintering Response of Austenitic (316L) and Ferritic (434L) Stainless Steel Consolidated in Conventional and Microwave Furnaces, Scripta Materialia, 54, 2179–2183.
• 2. Giménez, S., Vagnon, A., Bouvard, D., Van der Biest, O., 2006. Influence of the Green Density on the Dewaxing Behaviour of Uniaxially Pressed Powder Compacts, Materials Science and Engineering A 430, 277–284.
• 3. Yılmaz, R., Ekici, M.R., 2015. Üretim Parametrelerin Düşük Alaşımlı TM Çeliklerin Sertlik ve Aşınma Özelliklerine Etkisi 3rd International Symposium on Innovative Technologies In Engineerıng and Science (ISITES2015) Valencia-Spain, 2545-2554.
• 4. Zarebski, K., Putyra, P., 2015. Iron Powder-based Graded Products Sintered by Conventional Method and by SPS, Advanced Powder Technology, 26, 401–408.
• 5. Al-Qureshi, H.A., Galiotto, A., Klein, A.N., 2005. On the Mechanics of Cold Die Compaction for Powder Metallurgy, Journal of Materials Processing Technology, 166, 135–143.
• 6. Abdoos, H., Khorsand, H., Shahani, A.R., 2009. Fatigue Behavior of Diffusion Bonded Powder Metallurgy Steel with Heterogeneous Microstructure, Materials and Design, 30, 026-1031.
• 7. James, W.B., OtBrien, R.C., 1986. High Performance Ferrous PM Materials: The Effect of Alloying Method on Dynamic Properties. Progress in powder Metallurgy. Princeton NJ: MPIF.
• 8. Alzati, L., Bergmark, A., Andersson, J., 2005. Fatigue Performance of PM Steel in Assintered State. Presented at PMAI Vonference, Mumbai, India, 9.
• 9. Lindskog, P., 2013. The History of Distaloy, Powder Metallurgy, 56:5, 351-361.
• 10. Öksüz, K.E., Kumruoğlu, L.C., Tur, O., 2015, Effect of Sicp on the Microstructure and Mechanical Properties of Sintered Distaloy DC Composites, 5th International Biennial Conference on Ultrafin Grained and Nanostructured Materials (UFGNSM15), Tehran-Iran, Procedia Materials Science 11, 49-54.
• 11. http://labman.phys.utk.edu/phys221core/modul es/m9/regulation.html.
• 12. https://study.com/academy/lesson/heat flow-in-solids-fluids.html.
• 13. Pandya, S., Ramakrishna, K.S., Annamalai A.R., Upadhyaya, A., 2012, Effect of Sintering Temperature on the Mechanical and Electrochemical Properties of Austenitic Stainless Steel, Materials Science and Engineering A, 556, 271–277.
• 14. Butković, S., Oruč, M., Šarić, E., Mehmedović, M., 2012. Effect of Sintering Parameters on the Density, Microstructure and Mechanical Properties of the Niobium-Modified Heat-Resistant Stainless Steel GX40CrNiSi25-20 Produced by MIM Technology, Materiali in tehnologije/Materials and Technology 46, 2, 185–190.
• 15. Butković, S., 2013. Sinterability And Tensile Properties of Nickel Free Austenitic Stainless Steel X15CrMnMoN 17 11 3, Technical Gazette 20, 2, 269-274.
• 16. Göbel, A., Vidi, S., Klinker, F., Hemberger, F., Brütting, M., Ebert, H.P., Mehling, H., 2017 Method for the Thermal Characterization of PCM Systems in the Volume Range from 100 ml to 1000 ml, International Journal of Thermophysic 38(67), 12.
• 17. Yao, B., Zhou, Z., Duan, L., Xiao, Z., 2016. Compressibility of 304 Stainless Steel Powder Metallurgy Materials Reinforced with 304 Short Stainless Steel Fibers, Materials, 9(161), 1-11.
• 18. Yıldızlı, K., 2015. Investigation on the Microstructure and Toughness Properties of Austenitic and Duplex Stainless Steels Weldments Under Cryogenic Conditions, Materials and Design, 77, 83–94.
• 19. Karwan-Baczewska, J., 2015. Processing and Properties of Distaloy SA Sintered Alloys with Boron and Carbon, Archives of Metallurgy and Materials, 60(1), 41-45.
• 20. Acar, A.N., Ekşi, A.K., Ekicibil, A., 2019. Structural and Physical Properties of Sintered Distaloy AE Alloy Compacts, UDCS'19 Fourth International Iron and Steel Symposium, 4-6 April, Karabuk, 231-233.
• 21. Acar, A.N., Ekşi, A.K., Ekicibil, A., 2019. Specific Heat Capacity Behaviours of P/M Distaloy AE Alloy Compacts, International Conference on Condensed Matter and Materials Science ICCMMS-2019 14-19 October 2019 Adana, 7-13.