Mechanical properties and corrosion resistance of burnished X5CrNi 18-9 stainless steel

• Autorzy: Pałka K. , Weroński A. , Zaleski K.
• Języki publikacji: EN

Abstrakty

EN

Purpose: In this paper there were presented the burnishing process and obtained mechanical properties and the structure of burnished stainless steel and its corrosion resistance. Design/methodology/approach: Burnishing was conducted in standard milling machine equipped with the 2-ball rotation head. The structural and mechanical researches were carried out by optical microscopy and the X-ray diffraction patterns. The corrosion research was performed using the potentiodynamic anodic polarization. The scope of this study was to achieve the correlations between mechanical and structural properties and corrosion resistance of burnished stainless steel. Findings: Results shown increasing of the open circuit potential (EOCP) and decreasing of breakdown (Eb) and repassivation potentials (Erp) with increasing of burnishing load. The breakdown potential and the repassivation potential changes were influenced by structural changes in surface layer and it indicated of slightly decreasing of corrosion resistance. It might be caused by martensitic transformation induced by the plastic deformation. The X-ray diffraction analysis showed increasing of Fe-α contain with the burnishing load. Research limitations/implications: There’s need to conduct future research on susceptibility to stress corrosion cracking and fatigue corrosion. The main difference between presented research and the future is necessity of double-sided burnishing of specimens. Practical implications: Burnishing increases the strength and the rigidity of elements, especially stream plates of heat exchangers which may have lower thickness to improve the heat transfer. Some of elements, such as homogenized valves achieving better erosion and wear resistance by higher surface hardness. Originality/value: Presented researches contain a lot of quantitative results which may be useful for design engineers in wide space of application.

Słowa kluczowe

EN

stainless steel; burnishing; strengthening; corrosion; martensitic transformation

PL

stal nierdzewna; nagniatanie; wzmacnianie; korozja; transformacja martenzytyczna; przemiana martenzytyczna

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2006
• Tom: Vol. 16, nr 1-2
• Strony: 57--62
• Opis fizyczny: Bibliogr. 10 poz., rys., tab., wykr.

Twórcy

autor

Pałka K.

• Department of Materials Engineering, Lublin University of Technology, ul. Nadbystrzycka 36, 20-618 Lublin, Poland

autor

Weroński A.

• Department of Materials Engineering, Lublin University of Technology, ul. Nadbystrzycka 36, 20-618 Lublin, Poland

autor

Zaleski K.

• Department of Production Engineering, Lublin University of Technology, ul. Nadbystrzycka 36, 20-618 Lublin, Poland

Bibliografia

• [1] A.J. Betts, L.H. Boulton: Corrosion of Stainless Steels in the Food Processing Industries. Corrosion Australasia, Vol. 18, No. 5, 1993.
• [2] A.M. Hassan: The effects of ball- and roller-burnishing on the surface roughness and hardness of some non-ferrous materials. Journal of Mat.Proc.Techn. 72 (1997) 385-391
• 3] M. Karolus, K. Pałka: Structural and phase transformation in stainless steels after rotary burnishing process. „Achievements in Mechanical & Materials Engineering”, 12th International Scientific Conference AMME, Gliwice–Zakopane 2003.
• [4] P. Kula: Inżynieria warstwy wierzchniej. Wyd. Politechniki Łódzkiej, 2000 (in Polish).
• [5] K. Pałka, A. Weroński, K. Zaleski: Corrosion resistance of burnished X5CRNi 18-9 stainless steel. Proc. of 11th International Scientific Conference CAM3S’2005, Gliwice-Zakopane 2005
• [6] K. Pałka, A. Weroński: Efekty stosowania powierzchniowej obróbki plastycznej stali austenitycznych w budowie maszyn spożywczych. Inżynieria Rolnicza, nr 9, PAN, Warszawa 2002. (in Polish)
• [7] K. Pałka, A. Weroński: Problematyka dogniatania stali austenitycznych w budowie maszyn przemysłu spożywczego. Inzynieria Materiałowa, nr 6, 2003 (in Polish).
• [8] K. Przybyłowicz: Fizyczne podstawy odkształcenia plastycznego metali. Wyd. AGH, Kraków 1989 (in Polish).
• [9] B. Surowska, A. Weroński: Cold work effect on pitting corrosion of some biomaterials. 14th International Scientific Conference „Advanced Materials and Technologies”, Gliwice-Zakopane 1995, str. 425÷428.
• [10] N.Wing-yan: Relation Between Phase Transition of Martensite Induced by Deformation and Pitting Susceptibility of 1Cr18Ni9Ti Stainless Steel in Acidic NaC1 Solution, http://www.intercorr.com.