Abstract
HSS has high strength, wear resistance, and hardness together with an appreciable toughness and fatigue resistance. PIM has received attention owing to its ability to shape without additional processes. The experimental specimens were manufactured using PIM with T42 powders (59 vol.%) and polymer (41 vol.%). The green parts were solvent debound in n-Hexane at 60 °C for 24 hours and further thermally debound in a N2-H2 mixed gas atmosphere for 18 hours. The specimens were then sintered in a vacuum (10−5 mtorr), hydrogen and nitrogen gas atmosphere. In the vacuum, the specimen sintered at 1240 °C had the highest hardness at 520 Hv. In this condition, the carbides were well-distributed and located in the grain. The grain size was 10 μm, and the carbide size was 1 μm. When sintering in a vacuum at over 1260 °C, the carbides converted to eutectic carbide and were located at the grain boundary. Grain growth was observed. The specimens sintered in a nitrogen atmosphere had a lower density and hardness than that produced in the vacuum.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
