Ali Kaya Gür

Investigating the Wear Behaviour of FeCrC/B4C Powder Alloys Coating Produced by Plasma Transferred Arc Weld Surfacing Using the Taguchi Method

Abstract In this study, the optimization of the abrasive wear behaviour of a medium carbon steel surface with a FeCrC/B4C powder coating applied by using the plasma arc weld surfacing process is examined. Optimization of the process parameters represents the key step in the Taguchi method to achieve high quality without increasing cost. The Taguchi method uses orthogonal arrays to maximize the effect of controllable parameters and to minimize the effect of uncontrollable process parameters. The abrasive wear behaviour of the surface of a medium carbon steel substrate material coated with FeCrC and with 15 % or 25 % B4C was tested at loads of 10 N, 20 N, and 30 N and at distances of 10 m, 20 m, and 30 m. The lowest wear loss, representing the most important criterion in determining the wear behaviour, was optimized with the so-called lowest-the best control characteristics of the Taguchi method and the results were analyzed by graphical methods.

Wear Properties of Fe-Cr-C and B4C Powder Coating on AISI 316 Stainless Steel Analyzed by the Taguchi Method

Abstract In this study, the plasma arc welded cladding of FeCrC and B4C powder mixtures alloyed with 70 wt.- % Cr on the surface of AISI 316 stainless steel was investigated. Application of the Taguchi method revealed respective effects on the abrasive wear resistance of the cladding layer on the stainless steel. The abrasive wear behaviour of the AISI 316 stainless steel surfaces coated with Fe-Cr-C and with 10 wt.-%, 15 wt.-%, 20 wt.-%, and 25 wt.-% B4C was investigated by using four loads and four distances for the 220 mesh SiC abrasive. Results were analyzed by variance analysis using ANOVA, and effects of parameters on the wear rate were determined as percentage rate. Furthermore, the error ratio was statistically evaluated. The experimental results were analyzed by the respective analysis of means and variance which is discussed in detail.

Abrasive wear resistance optimization of three different carbide coatings by the Taguchi method

Abstract In this study, FeCrC, SiC and B4C powders were alloyed on the surface of AISI 430 ferritic stainless steel by plasma arc welding. The mass losses of the abrasive wear of the AISI 430 substrate were examined under the loads of 6, 10 and 16 N and in the distances of 10, 20 and 30 m by using Taguchi design method. The results of abrasive wear test were optimized by the minimum optimal control characteristics of the Taguchi procedure and the results were analyzed by using graphical methods. The Taguchi procedure is an important approach to achieve high quality without increasing the cost during the optimization of process parameters. The orthogonal planes of maximum effects of the controllable process parameters and minimum effects of uncontrollable process parameters were employed in the Taguchi method.

Examination of the Wear Behavior of Cu-Ni/B 4 C p Composite by the Taguchi Method

Abstract The purpose of this study is to investigate the effects of process parameters on adhesive wear resistance by using the Taguchi experimental design method. In this study, Cu-Ni/B4Cp composites were produced by the powder metallurgy method and the effect on the adhesive wear resistance was investigated. Cu-Ni/B4Cp composite materials were made by cold pressing methods and reinforced with 1% Ni as well as with 6, 12 and 18% B4Cp, respectively. The sintering was carried out at 800 and 900°C for 60 minutes. The wear tests were performed by using block on ring test apparatus at loads of 5, 10 and 15 N at a rotation speed of 90 rpm and a wear distance of 250, 500 and 750 m, respectively. The results were evaluated by the calculated wear losses. The wear resistance increased with increasing B4C ratio.