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B. Grzeszykowski and E. Szmigiera

R eferences 1. CEN, EN 1994-1-1:2008 - Eurocode 4: Design of composite steel and concrete structures - Part 1-1: General rules and rules for buildings. 2008. 2. E. Szmigiera, M. Niedośpiał, B. Grzeszykowski, “Projektowanie konstrukcji zespolonych stalowo-betonowych, część 1, elementy zginane”, PWN, Warsaw, Poland, 2019. 3. W. Lorenc, “Boundary approach in shape study of composite dowel shear connector”, Archives of Civil and Mechanical Engineering, 9(4): pp 55-66, 2009. 4. M. Kopp, K. Wolters, M. Claßen, J. Hegger, M. Gündel, J. Gallwoszus

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J. Przondziono, E. Hadasik, W. Walke and J. Mendala

The study presents results of tests of impact of work hardening in cold drawing process, surface treatment and sterilisation on resistance to electrochemical corrosion of wires made of stainless steel X2CrNiMo 17-12-2 intended for cardiology. Potentiodynamic tests were performed on the ground of registered anodic polarisation curves in artificial plasma solution. Static uniaxial tension test made the ground for determination of strength characteristics of wires and the flow curve. Functions presenting the change of polarisation resistance according to strain applied in drawing process were selected.

Test results show deterioration of corrosion properties of wires with work hardening. Surface modification of passivated surface caused increase of resistance of stainless steel wires to electrochemical corrosion, whereas sterilisation with pressurised water steam deteriorated that resistance.

Open access

A. Cwudzinśki

References [1] H. Kimura, M. Masateru, R. Miura, K. Sug-awara, A. Uehara, H. Tanaka, T. Shirai, Nippon steel Technical Report 61, 22 (1994). [2] H. Yu, M. Zhu, ISIJ Int. 48, 584 (2008). [3] J.-K. Yoon, ISIJ Int. 48, 879 (2008). [4] K. Timmel, S. Eckert, G. Gerber h, F. Stefan i, T. Wondra k, ISIJ Int. 50, 1134 (2010). [5] M.J. Cho, S.J. Ki m, ISIJ Int. 50, 1175 (2010). [6] M. Czapla, M. Karbowniczek, A. Michal -iszy n, Archiv. of Metal. Mater. 53, 559 (2008

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P. Rokicki and K. Dychton

REFERENCES [1] A. Nowotnik, P. Rokicki, G. Mrówka-Nowotnik, J. Sieniawski Dynamic precipitation of nickel-based superalloys undergoing severe deformation below the solvus temperature, Int. Journal of Materials Research 106 , 7 (2015). [2] N.M. Ryzhov, A.E. Smirnov, R.S. Fakhurtdinov, Control of Carbon Saturation of the Diffusion Layer in Vacuum Carburizing of Heat-Resistant Steels, Material Science and Heat Treatment 46 , 7-8 (2004). [3] N.M. Ryzhov, R.S. Fakhurtdinov, A.E. Smirnov, L.P. Fomina, Analysis of Methods of Carburizing of Gears from

Open access

A. Cwudziński and J. Jowsa

-Wiadomości Hutnicze, 78 , 224 (2011). (in polish) A. Cwudziński, J. Jowsa, Archiv. of Metall. and Mater. 53 , 509 (2008). Y. Sahai, T. Emi, ISIJ Int. 36 , 667 (1996). D. Mazumdar, R. I. L. Guthrie, ISIJ Int. 39 , 524 (1999). M. Clark, T. Wagner, A. Trousset http://www.foseco-steel.com S. Chakraborty, T. Hirose, B. Jones, D. A. Dukelow, Continuous Casting, 10 , 41 (2003). B. G. Thomas, Continuous Casting 10 , 115 (2003).

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C. Moganapriya, R. Rajasekar, K. Ponappa, R. Venkatesh and R. Karthick

Abstract

This paper presents the influence of cutting parameters (Depth of cut, feed rate, spindle speed and cutting fluid flow rate) on the surface roughness and flank wear of physical vapor deposition (PVD) Cathodic arc evaporation coated TiAlN tungsten carbide cutting tool insert during CNC turning of AISI 1015 mild steel. Analysis of Variance has been applied to determine the critical influence of cutting parameters. Taguchi orthogonal test design has been employed to optimize the process parameters affecting surface roughness and tool wear. Depth of cut was found to be the most dominant factor contributing to high surface roughness (67.5%) of the inserts. However, cutting speed, feed rate and flow rate of cutting fluid showed minimal contribution to surface roughness. On the other hand, cutting speed (45.6%) and flow rate of cutting fluid (23%) were the dominant factors influencing tool wear. The optimum cutting conditions for desired surface roughness constitutes the following parameters such as medium cutting speed, low feed rate, low depth of cut and high cutting fluid flow rate. Minimal tool wear was achieved for the following process parameters such as low cutting speed, low feed rate, medium depth of cut and high cutting fluid flow rate.

Open access

J. Pieprzyca, T. Merder and M. Saternus

, 6, 2749-2758 (2012). [6] T. Merder, J. Pieprzyca, M. Saternus, Metalurgia, 2, 155-157, (2014). [7] A. Fornalczyk, S. Golak, M. Saternus, Mathematical Problems in Engineering, ID 461085 doi:10.1155/2013/461085 (2013). [8] M. Tkadleckova, P. Machovcak, K. Gryc, K. Michalek, L. Socha, P. Klus, Archives of Metallurgy and Materials 58, 1, 171-177, (2013). [9] M. Warzecha, Metalurgija, 50 (3), 147-150, (2011). [10] T. Merder, J. Pieprzyca, Steel Research International, 11, 1029-1038, (2012

Open access

L. Sowa

determination of the influence of input temperature changes on the molten steel flow characteristics in slab tundishes. Metallurgical and Materials Transactions B. 35B(10), 957-966. [4] Miki, Y. &. Thomas, B.G. (1999). Modeling of inclusion removal in a tundish, Metallurgical and Materials Transactions B. 30B(4), 639-654. [5] Cwudziński, A. & Jowsa, J. (2012). Numerical analysis of liquid steel flow structure in the one strand slab tundish with subflux turbulence controller and dam. Archives of Metallurgy and Materials. 57(1), 297-301. DOI: 10

Open access

P. Scheller and R. Hagemann

). J. Park, Thermodynamic Investigation on the formation of inclusions containing MgAl 2 O 4 spinel during 16Cr - Ni austenitic stainless steel manufacturing process, Materials Science and Engineering A 472 , 43-51 (2008). J. Savolainen, T. Fabritius, O. Mattila, Effect of Fluid Physical Properties on the Emulsification, ISIJ International 49 , 26-36 (2009). J. Janssen, A. Boon, W. Agterof, Influence of Dynamic Interfacial Properties on Droplet Breakup in Simple Shear Flow AIChE Journal 40 , 1929-1939 (1994

Open access

J. Michalski, K. Burdyński, P. Wach and Z. Łataś

REFERENCES [1] J. Ratajski, R. Olik, T. Suszko, J. Dobrodziej, J. Michalski, Design, Control and in Situ Visualization of Gas Nitriding Processes, Sensors 10 , 1, 218-240 (2010). [2] J. Ratajski, Relation between phase composition of compound zone and growth kinetics of diffusion zone during nitriding steel, Surface & Coatings Technology 203 , 16, 2300 (2009). [3] P. Kochmanski, J. Baranowska, Kinetics of Low Temperature Nitriding of Precipitation Hardened Stainless Steel, Defect and Diffusion Forum 312-315 , 530-535 (2011). [4] J