Work

Study on Microstructure and Properties of Q460 Steel at Different Ni Contents

Year: 2026

Type: article

Abstract: Q460 steel with varying Ni contents was produced via the hot continuous rolling process. The microstructure and properties were examined using scanning electron microscopy (SEM) and universal testing machines. The results show that with increasing Ni content, the number of inclusions rises, and the microstructure gradually evolves from ferrite and pearlite to a mixture of ferrite, pearlite, and bainite. Due to the formation of bainite and refined grains, both the yield strength and tensile strength are significantly improved. However, with the increase in inclusions, the elongation and impact energy of the material do not exhibit substantial enhancement. Considering both cost and performance, the Ni content in Q460 steel is preferably controlled at 0.3%.

Source: Materials

DOI: 10.3390/ma19040704

Authors: Xuehai Qian, Weiping Lu, Zhen Li, Zecheng Zhuang, Lei Zeng, Jianping Tan

Institution: Central South University

Language: English

Topic: Microstructure and Mechanical Properties of Steels

Subfield: Mechanical Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $3,137

Funder: Science and Technology Department of Guangxi Zhuang Autonomous