Effect of heat treatment process on microstructure and properties of S47450 bolt-Reference-Cited by-同舟云学术

Effect of heat treatment process on microstructure and properties of S47450 bolt

Published:2022-03-01 Issue:3 Volume:59 Page:146-163
ISSN:2195-8599
Container-title:Practical Metallography
language:en
Short-container-title:

Author:

Tao Siyou¹,Sun Shibao¹,Wang Sailong¹,Rong Chai¹,Du Xiaodong¹²

Affiliation:

1. School of Materials Science and Engineering, Hefei University of Technology , Hefei Anhui , China , 230009

2. Engineering Research Center of High Performance Copper Alloy Materials and Processing, Ministry of Education, Hefei University of Technology , Hefei Anhui , China , 230009

Abstract

Abstract The effects of heat treatment process on the microstructure and mechanical properties of S47450 bolt materials were studied by optical microscope (OM), scanning electron microscope (SEM), X-ray diffraction (XRD), tensile test, impact test and hardness test. The results showed that in the temperature range selected by the test, the quenched martensite of the bolt material after quenching at 1070 °C and tempering at 670 °C was fully refined and evenly distributed, and the precipitation of Cr23C6 played the role of precipitation hardening. It showed the excellent comprehensive mechanical properties, with the Brinell hardness reaching 295 HBW and the tensile strength of 1035 MPa. The elongation was 16 %, and the impact energy at room temperature was 21 J.

Publisher

Walter de Gruyter GmbH

Subject

Metals and Alloys,Mechanics of Materials,Condensed Matter Physics,Electronic, Optical and Magnetic Materials

Link

https://www.degruyter.com/document/doi/10.1515/pm-2022-0014/pdf

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