Sony Valluri - Academia.edu (original) (raw)
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Swinburne University of Technology, Hawthorn
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Present work aimed at investigating the wear resistance of AISI 630 (UNS S17400) or 17-4 PH stain... more Present work aimed at investigating the wear resistance of AISI 630 (UNS S17400) or 17-4 PH stainless steel hardened by precipitation hardening or aging at various hardness levels.
15-5 PH (Fe-Cr-Ni) is a precipitation hardening, martensitic stainless steel. The alloy has good ... more 15-5 PH (Fe-Cr-Ni) is a precipitation hardening, martensitic stainless steel. The alloy has good strength, transverse toughness and ductility, hardness capability and corrosion resistance compared with 304 stainless. It may be used in the solution treated condition or heat treated to obtain a wide variety of properties.15-5 PH stainless steel is used in applications requiring high strength and toughness in all directions. It is mainly used in aircraft components and actuator parts for modern fighter aircrafts. The main aim of this project is to study the effect of precipitation hardening on micro structural characteristics of 15-5 PH stainless steel. A round specimen of 15-5 PH with 10mm diameter & 100mm length is selected. Chemical analysis is done using optical emission spectrometer. Specimen is cut into small specimens with dimensions 10mm diameter & 10mm thickness using abrasive cutting technique. Precipitation hardening is done for each sample at different temperatures as per AMS 2759 standards. Hardness of solution annealed and precipitation hardened samples is determined by using Rockwell hardness tester. Microstructures were observed by using Metallurgical microscope under the magnification of 100X.
Present work aimed at investigating the wear resistance of AISI 630 (UNS S17400) or 17-4 PH stain... more Present work aimed at investigating the wear resistance of AISI 630 (UNS S17400) or 17-4 PH stainless steel hardened by precipitation hardening or aging at various hardness levels.
15-5 PH (Fe-Cr-Ni) is a precipitation hardening, martensitic stainless steel. The alloy has good ... more 15-5 PH (Fe-Cr-Ni) is a precipitation hardening, martensitic stainless steel. The alloy has good strength, transverse toughness and ductility, hardness capability and corrosion resistance compared with 304 stainless. It may be used in the solution treated condition or heat treated to obtain a wide variety of properties.15-5 PH stainless steel is used in applications requiring high strength and toughness in all directions. It is mainly used in aircraft components and actuator parts for modern fighter aircrafts. The main aim of this project is to study the effect of precipitation hardening on micro structural characteristics of 15-5 PH stainless steel. A round specimen of 15-5 PH with 10mm diameter & 100mm length is selected. Chemical analysis is done using optical emission spectrometer. Specimen is cut into small specimens with dimensions 10mm diameter & 10mm thickness using abrasive cutting technique. Precipitation hardening is done for each sample at different temperatures as per AMS 2759 standards. Hardness of solution annealed and precipitation hardened samples is determined by using Rockwell hardness tester. Microstructures were observed by using Metallurgical microscope under the magnification of 100X.