Journals / Makine Teknolojileri Elektronik Dergisi (elektronik) / 2010 / Cilt: 7 - Sayı: 2

The effect of cooling rate on toughness and hardness of AISI 1060 plain carbon steels

AISI 1060 çelik malzemenin tokluk ve sertlik değerlerine soğutma ortamının etkisi

Pages
45–52
DOI
—
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Further increases in toughness were obtained by heat treatments applied afterwards.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Materials properties can be significantly changed depending on heat treatment temperature and varying cooling rate.
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Key Findings & Data:In this study, the effects of cooling rate on the microstructure and mechanical properties of AISI 1060 steels were investigated.
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Conclusion & Impact:Further increases in toughness were obtained by heat treatments applied afterwards.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Materials properties can be significantly changed depending on heat treatment temperature and varying cooling rate. In this study, the effects of cooling rate on the microstructure and mechanical properties of AISI 1060 steels were investigated. Samples were heated and treated at 820°C and 950°C for 25 min and subsequently were cooled in three different (water, oil and air) methods. Also, stress relieving treatment at 600 °C was applied the specimens cooled in water. Changes in material structure were determined by Charpy impact test and micro hardness measurements. Inner structure images were obtained by optical microscope. Higher toughness at specimens of 820°C was obtained by cooling in water, oil and air respectively. Further increases in toughness were obtained by heat treatments applied afterwards.

Özet

Isıl islem sıcaklığı ve soğutma ortamına bağlı olarak malzeme özellikleri önemli oranda değistirilebilir. Bu çalısmada AISI 1060 çeliğine tavlama sıcaklığı ve soğutma ortamları değistirilerek malzemenin içyapısı ve mekanik özelliklerinde olusan değisimler arastırılmıstır. Tavlama sıcaklığı 820 °C ve 950 °C olup, 25 dakika süresince numuneler bekletilmis ve havada, suda ve yağda soğutulmustur. Ayrıca suda soğutulan numunelere 600 °C’ de gerilim giderme tavı da uygulanmıstır. Çentik darbe deneyi ve mikrosertlik ölçümleri ile yapıda olusan değisimler belirlenmistir. Ayrıca optik mikroskop ile içyapı görüntüleri alınmıstır. Sonuçlarda bu çeliğin 820 0C sıcaklıktan su, yağ ve hava ortamında soğutulan numunelerde elde edilen tokluk artısı su, yağ ve hava sırasıyla olmustur ve daha sonra uygulanan ısıl islemle önemli oranda tokluk artısı elde edilmistir.

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Cite This Article

KÖKSAL, N. S., AKPINAR, G., AYDIN, İ. (2010). The effect of cooling rate on toughness and hardness of AISI 1060 plain carbon steels. Makine Teknolojileri Elektronik Dergisi (elektronik), Cilt: 7 - Sayı: 2, 45–52. https://ajindex.com/articles/282049

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