Characterization of induction hardened and tempered AISI 1045 steel

Materia

article

G.D. Wenish¹  M. Prince²  J. Maniraj³ 

[1] Ponjesly College of Engineering;Solamalai College of Engineering;Kalaignar Karunanidhi Institute of Technology

关键词: Induction Hardening;    Quenching;    Tempering;    Microhardness;    Austenitic Stainless Steel;    Plasma Nitro-Carburizing;   

DOI  :  10.1590/1517-7076-RMAT-2022-0170

学科分类：工程和技术（综合）

来源: Universidade Federal do Rio de Janeiro * Coordenacao dos Programas de Pos-Graduacao de Engenharia

【 摘 要 】

In this investigation of AISI 1045 steel are tested in two stages. In the first stage of AISI 1045 steel samples, induction boriding and induction hardening of heat treatment typically 800 °C, 900 °C, 1000 °C, 1100 °C, and 1200 °C applied over the course of two seconds. Internal strains maybe mitigated using a 30 min tempering at temperature ranges 300 °C, 500 °Cand 700 °C. After that the samples subjected to the induction hardening, microhardness and tensile strength according to ASTM. The lowest hardness readings are achieved between 800 and 1100 °C, while the maximum hardness of 685HV is reported after heating to 1200 °C and then cooling in water. The second stage involves AISI 1045 steel is treated with low-temperature plasma nitro-carburizing, and its effects are studied. The specimens are treated at temperatures over 430 °C, NCr2is formed and has an effect on the corrosion resistance property. Increasing the temperature to 450 °C raises the surface hardness to approximately 1000 HV0.05. Treatment at 400 °C results in superior corrosion resistance compared to untreated steel. According to the results of the experiments, the surface hardness of AISI 1045 steel materials increases with an increase in temperature.

【 授权许可】

CC BY