Machining performance of high energy die-sinking electrical discharge machining on GH2132

Experimental and statistical analysis of wear on gear material

“…In the present case, considering two control factors (load and speed) with three-level, such as 30, 40, 50 N for load and 300, 400 and 500 rpm for speed the L 9 orthogonal array, the Taguchi configuration of the experiment was chosen, as shown in Table 7. 13,14,[16][17][18][19][20][21][22][23]26,[40][41][42][43][44][45][46][47][48] The weight loss is recorded for pin and disc (both). Five tests are conducted under each condition and average value are taken.…”

“…The design of the experiment is a statistical method that regulates the input parameters to figure out the optimal parameters. In the present case, considering two control factors (load and speed) with three‐level, such as 30, 40, 50 N for load and 300, 400 and 500 rpm for speed the L 9 orthogonal array, the Taguchi configuration of the experiment was chosen, as shown in Table 7 13,14,16–23,26,40–48 . The weight loss is recorded for pin and disc (both).…”

“…18 Analysis of variance (ANOVA) is done to find out how input parameters affect the output parameters. [19][20][21][22] From the available literature, it has been observed that there is a gap in a comparative study of RULL using three different parameters: FTIR analysis, wear debris analysis and tribological analysis. Additionally, the study was expanded to investigate the impact of varying speed and load on gear wear and tear and the ANOVA technique was employed for this analysis.…”

“…Viscosity is the major parameter to maintain oil film thickness that reduces the COF, but film thickness reduces with an increase in surface roughness as well as mixing of wear debris into lubrication oil due to wear 18 . Analysis of variance (ANOVA) is done to find out how input parameters affect the output parameters 19–22 …”

Corrosion of the Fe–25Ni–15Cr superalloy under the combined effects of marine atmospheric exposure and high-temperature oxidation

“…The Fe-25Ni-15Cr superalloy has been widely used in turbine discs, compressor discs, rotor blades, and fasteners due to its excellent yield strength, permanence strength and wonderful forming property below 650 °C [26][27][28]. In the present study, the atmospheric corrosion behaviour of Fe-25Ni-15Cr was investigated by outdoor field exposure in the tropical marine environment of China, where the environmental corrosivity level is higher than the maximum defined in ISO 9223 [29].…”