The Effect On Microstructure Mechanical Properties Of Vanadıim In Nb-V Microalloyed Steel Produced By Powder Metallurgy
Yıl 2018,
Cilt:6 Sayı:3 (2018) (Özel Sayı: UMAS 2017), 629 - 636, 10.04.2018
Mehmet Akif Erden
,
Samet Barlak
Berkay Adalı
Özgür Çelikkıran
Öz
In this study, the addition of vanadium element (0-0,025-0,05-0,1-0,3-0,5-1-3% by weight) at different ratios as well as the addition of graphite and niobium in the fixed matrix into the Fe matrix by powder metallurgy method the steel material in the composition is obtained as a powder mixture. The obtained powders were compacted at 700 MPa pressing pressure in the form of drawn specimen and steel production was performed by sintering at 1400 ° C in argon atmosphere in an atmosphere controlled tube furnace. The mechanical properties of Nb-V microalloyed steel specimens with different V ratios were analyzed by tensile and microhardness test. Microstructure of powder metal steels is characterized by optical microscope. The results show that the TM steel
samples added with 1% V by weight have the highest yield and tensile strength. With increasing the V content from 1% to 3%, a decrease in yield and tensile strength was observed.
Kaynakça
- [1] M. A. Erden, “The Effect of the Sintering Temperature and Addition of Niobium and Vanadium
on the Microstructure and Mechanical Properties of Microalloyed PM Steels,” Metals, vol. 7, no. 9, pp.
329, 2017.
- [2] H. Demir, H. B. Ulaş ve M. Zeyveli, “Stavax esr çeliğinin yüzey pürüzlülüğü ve kesme
kuvvetleri açısından değerlendirilmesi,”5. Uluslararası İleri Teknolojiler Sempozyumu
(IATS’09), Karabük, Türkiye, ss. 1270-1273, 2009.
- [3] M. Türkmen, “Effect of carbon content on mıcrostructure and mechanıcal propertıes of powder
metallurgy steels,” Powder Metallurgy and Metal Ceramics, vol. 55, pp. 3-4, 2016.
636
[4] M. A. Erden, S. Gündüz, M. Türkmen and H. Karabulut, “The effect of V addition on the
microstructure and mechanical properties of low carbon microalloyed powder metallurgy steels,”
Materials Testing, vol. 58, no. 5, pp. 433-437, 2016.
- [5] İ. Uygur, “Fe-Cu-C çeliklerine mangan ilavesinin mekanik özelliklere etkisi”, Gazi Üniversitesi
Mühendislik ve Mimarlık Fakültesi Dergisi, c. 22, s. .3, ss. 325-330, 2007.
- [6] S. Gündüz, M. A. Erden, M. Türkmen and H. Karabulut, “The influence of vanadium and
titanium on the mechanical properties of microalloyed PM steel,” Powder Metallurgy and Metal
Ceramıcs, vol. 55, no. 5, pp. 277-287, 2017.
- [7] T. Gladman and J. H. Woodhead, “The accuracy of point counting in metallographic
investigations,” Journal of Iron and Steel Research, vol. 194, pp. 184‐193, 1960.
[8] S. Sarıtaş, M. Türker ve N. Durlu, Toz metalürjisi ve parçacıklı malzeme işlemleri, 1. Baskı,
Ankara, Türkiye: Türk Toz Metalurjisi Yayınları, 2007, böl. 1, pp. 2‐34.
- [9] C. Schade, T. Murphy, A. Lawley and R. Doherty, “Microstrucure and mechanical properties
of microalloyed PM steels,” International Journal of Powder Metallurgy, vol.48, no.6, pp.51-5, 2012.
[10] C. Schade, T. Murphy, A. Lawley and R. Doherty, “Microstructure and mechanical properties
of PM steels alloyed with silicon and vanadium,” International Journal of Powder Metallurgy, vol.48,
no.6, pp.41-48, 2012.
- [11] S. Gündüz, M. A. Erden, H. Karabulut, M. Türkmen, “Effect of the Addition Niobium and
Aluminium on the Microstructure and Mechanical Properties of the Micro-Alloyed PM Steels,”
Materials and Technology, vol. 50, no. 5, pp. 641–648, 2016.
- [12] Ş. Okumuş and H. Karabulut, “Effect of quench and strain aging on the mechanical properties
of low carbon microalloyed steels,” Materials Testing, vol.57, no.4, pp.289-295, 2015.
- [13] M. A. Erden, “Effect of C Content on Microstructure and Mechanical Properties of Nb-V Added
Microalloyed Steel Produced by Powder Metallurgy Method,” European Journal of Science and
Technology, vol. 5, no. 9, 44-47, 2016.
- [14] T. Gladman, “The physical metallurgy of microalloyed steels,” Mater. Sci. Technol, vol. 15, pp.
30–36, 1999.
- [15] V. Ollilainen, W. Kasprzak and L. Hollapa “The effect of slicon, vanadium and nitrogen on the
microstructure and hardness of air cooled medium carbon low alloy steel,” Journal of Metarials
Processing Technology, vol. 134, pp. 405‐412, 2003.
- [16] D. Özdemirler, S. Gündüz and M. A. Erden, “Influence of NbC Addition on the Sintering
Behaviour of Medium Carbon PM Steels,” Metals, vol. 7, no.4, pp. 121-132, 2017.
- [17] D. T. Llewellyn and R.C. Hudd, Steels: Metallurgy and Applications, 3rd ed., Oxford, UK: Reed
Educational and Professional Publishing Ltd., pp. 15–40, 1998.
Toz Metalurjisi İle Üretilen Nb-V Mikroalaşim Çeliğine Vanadyum İlavesinin Mikroyapi Mekaniksel Özellikleri Üzerine Etkisi
Yıl 2018,
Cilt:6 Sayı:3 (2018) (Özel Sayı: UMAS 2017), 629 - 636, 10.04.2018
Mehmet Akif Erden
,
Samet Barlak
Berkay Adalı
Özgür Çelikkıran
Öz
Bu çalışmada toz
metalurjisi yöntemiyle Fe matris içerisine sabit oranda grafit ve niyobium
ilavesinin yanı sıra farklı oranlarda vanadyum elementinin (% Ağırlık olarak
0-0,025-0,05-0,1-0,3-0,5-1-3) katılmasıyla istenilen bileşimde çelik malzeme
toz karışım olarak elde edilmiştir. Elde edilen tozlar çekme numunesi şeklinde
tasarlanan kalıpta 700 MPa presleme basıncında sıkıştırılarak atmosfer
kontrollü tüp fırında argon atmosferinde 1400ͦC’de sinterlenerek çelik üretimi
gerçekleştirilmiştir. Farklı V oranlarına sahip Nb-V mikroalaşımlı çelik
numunelerin mekanik özellikleri çekme ve mikrosertlik testi ile analiz
edilmiştir. Toz metal çeliklerin mikroyapısı optik mikroskop ile karakterize
edilmiştir. Sonuçlar % ağırlık olarak % 1 V ilave edilmiş TM çelik numunelerin
en yüksek akma ve çekme dayanımına sahip olduğu göstermektedir. V miktarı %1’dan %3’e çıkması ile akma ve
çekme dayanımında azalma gözlenmiştir.
Kaynakça
- [1] M. A. Erden, “The Effect of the Sintering Temperature and Addition of Niobium and Vanadium
on the Microstructure and Mechanical Properties of Microalloyed PM Steels,” Metals, vol. 7, no. 9, pp.
329, 2017.
- [2] H. Demir, H. B. Ulaş ve M. Zeyveli, “Stavax esr çeliğinin yüzey pürüzlülüğü ve kesme
kuvvetleri açısından değerlendirilmesi,”5. Uluslararası İleri Teknolojiler Sempozyumu
(IATS’09), Karabük, Türkiye, ss. 1270-1273, 2009.
- [3] M. Türkmen, “Effect of carbon content on mıcrostructure and mechanıcal propertıes of powder
metallurgy steels,” Powder Metallurgy and Metal Ceramics, vol. 55, pp. 3-4, 2016.
636
[4] M. A. Erden, S. Gündüz, M. Türkmen and H. Karabulut, “The effect of V addition on the
microstructure and mechanical properties of low carbon microalloyed powder metallurgy steels,”
Materials Testing, vol. 58, no. 5, pp. 433-437, 2016.
- [5] İ. Uygur, “Fe-Cu-C çeliklerine mangan ilavesinin mekanik özelliklere etkisi”, Gazi Üniversitesi
Mühendislik ve Mimarlık Fakültesi Dergisi, c. 22, s. .3, ss. 325-330, 2007.
- [6] S. Gündüz, M. A. Erden, M. Türkmen and H. Karabulut, “The influence of vanadium and
titanium on the mechanical properties of microalloyed PM steel,” Powder Metallurgy and Metal
Ceramıcs, vol. 55, no. 5, pp. 277-287, 2017.
- [7] T. Gladman and J. H. Woodhead, “The accuracy of point counting in metallographic
investigations,” Journal of Iron and Steel Research, vol. 194, pp. 184‐193, 1960.
[8] S. Sarıtaş, M. Türker ve N. Durlu, Toz metalürjisi ve parçacıklı malzeme işlemleri, 1. Baskı,
Ankara, Türkiye: Türk Toz Metalurjisi Yayınları, 2007, böl. 1, pp. 2‐34.
- [9] C. Schade, T. Murphy, A. Lawley and R. Doherty, “Microstrucure and mechanical properties
of microalloyed PM steels,” International Journal of Powder Metallurgy, vol.48, no.6, pp.51-5, 2012.
[10] C. Schade, T. Murphy, A. Lawley and R. Doherty, “Microstructure and mechanical properties
of PM steels alloyed with silicon and vanadium,” International Journal of Powder Metallurgy, vol.48,
no.6, pp.41-48, 2012.
- [11] S. Gündüz, M. A. Erden, H. Karabulut, M. Türkmen, “Effect of the Addition Niobium and
Aluminium on the Microstructure and Mechanical Properties of the Micro-Alloyed PM Steels,”
Materials and Technology, vol. 50, no. 5, pp. 641–648, 2016.
- [12] Ş. Okumuş and H. Karabulut, “Effect of quench and strain aging on the mechanical properties
of low carbon microalloyed steels,” Materials Testing, vol.57, no.4, pp.289-295, 2015.
- [13] M. A. Erden, “Effect of C Content on Microstructure and Mechanical Properties of Nb-V Added
Microalloyed Steel Produced by Powder Metallurgy Method,” European Journal of Science and
Technology, vol. 5, no. 9, 44-47, 2016.
- [14] T. Gladman, “The physical metallurgy of microalloyed steels,” Mater. Sci. Technol, vol. 15, pp.
30–36, 1999.
- [15] V. Ollilainen, W. Kasprzak and L. Hollapa “The effect of slicon, vanadium and nitrogen on the
microstructure and hardness of air cooled medium carbon low alloy steel,” Journal of Metarials
Processing Technology, vol. 134, pp. 405‐412, 2003.
- [16] D. Özdemirler, S. Gündüz and M. A. Erden, “Influence of NbC Addition on the Sintering
Behaviour of Medium Carbon PM Steels,” Metals, vol. 7, no.4, pp. 121-132, 2017.
- [17] D. T. Llewellyn and R.C. Hudd, Steels: Metallurgy and Applications, 3rd ed., Oxford, UK: Reed
Educational and Professional Publishing Ltd., pp. 15–40, 1998.