The Influence of Method of Carburizing and Nitrocarburizing on the Microstructure and Properties of Tool Steels
来源期刊：材料热处理学报2004年第5期
论文作者：Natalia Kucharieva Jan Senatorski Aleksander Nakonieczny Tomasz Babul
关键词：Nitrocarburizing; carburizing; tool steels; process kinetics; case depth; microhardness; friction wear;
摘 要：The paper presents the results of wear and metallography tests of tool steel grades: ASTM A681, Chl2M and Ch12FS per GOST, AMS 6437E i BS X46Cr13, all surface hardened by the Carbo process (carburizing) and by the NiCar process (nitrocarburizing). The thermo-chemical treatment was conducted in powder pack for a duration of 6 h (carburizing)and for 4 h in the case of nitrocarburizing. Factors investigated were: morphology, depth and microhardness of the cases obtained, their microstructure, as well as phase composition. Wear tests were conducted by the three cylinder-cone method.Wear velocity was 0.58 m/s, unit load was 50 MPa and 400Mpa, wear path was 3470 m. Oil SAE30 was applied at the rate of 30 drops per minute.
Natalia Kucharieva1，Jan Senatorski2，Aleksander Nakonieczny2，Tomasz Babul2
(1.Belorussian National Technical University, Minsk, Belorus;
2.Institute of Precision Mechanics, Warsaw, Poland)
摘要:The paper presents the results of wear and metallography tests of tool steel grades: ASTM A681, Chl2M and Ch12FS per GOST, AMS 6437E i BS X46Cr13, all surface hardened by the Carbo process (carburizing) and by the NiCar process (nitrocarburizing). The thermo-chemical treatment was conducted in powder pack for a duration of 6 h (carburizing)and for 4 h in the case of nitrocarburizing. Factors investigated were: morphology, depth and microhardness of the cases obtained, their microstructure, as well as phase composition. Wear tests were conducted by the three cylinder-cone method.Wear velocity was 0.58 m/s, unit load was 50 MPa and 400Mpa, wear path was 3470 m. Oil SAE30 was applied at the rate of 30 drops per minute.
关键词:Nitrocarburizing; carburizing; tool steels; process kinetics; case depth; microhardness; friction wear;
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