Effect of Roller Quenching on Microstructure and Properties of 300 mm Thickness Ultra-Heavy Steel Plate

Metals

卷:10

Tianliang Fu¹  Guodong Wang¹  Jun Han¹  Zhaodong Wang¹ 

[1] The State Key Laboratory of Rolling and Automation, Northeastern University, P.O. Box 105, No. 11, Lane 3, Wenhua Road, Heping District, Shenyang 110819, China;

关键词: ultra-heavy steel plate;    roller quenching equipment;    cooling rate;    microstructure;    mechanical properties;   

DOI  :  10.3390/met10091238

来源: DOAJ

【 摘 要 】

In this paper, a 300 mm thickness ultra-heavy steel plate was selected as the research object. In addition, special roller quenching equipment and a new testing method were used to measure the quenching temperature curve at different positions of the steel plate. The relationships and corresponding interaction mechanisms between cooling rate, microstructure, and mechanical properties of an ultra-heavy steel plate during roller quenching were investigated. The results indicated that the cooling rate, strength, hardness, and impact energy decreased gradually along the thickness direction of the plate, while the cooling rate, average grain size, and mechanical properties were relatively uniform with little change along the length direction of the plate. The experimental results provide an effective way to further control the microstructure and properties of ultra-heavy steel plates during roller quenching.

【 授权许可】

Unknown