Regulation of Secondary Carbide Characteristics and Its Effect on Wear Resistance of High Carbon High Alloy Martensitic Steel

被引：0
|
作者：
Jiang J.-Z. [1 ]
Liu Y. [1 ]
Liu C.-M. [1 ]
机构：
[1] School of Materials Science & Engineering, Northeastern University, Shenyang
来源：
Liu, Chun-Ming (cmliu@mail.neu.edu.cn) | 1600年 / Northeast University卷 / 45期
关键词：
hardness; high carbon high alloy martensitic steel; impact toughness; secondary carbide; wear resistance;
D O I：
10.12068/j.issn.1005-3026.2024.04.005
中图分类号：
学科分类号：
摘要：
The size and content of secondary carbide have an important effect on the mechanical properties and wear resistance of high carbon high alloy martensitic steel. In this paper, the evolution behavior of secondary carbide during forging and spheroidizing annealing process were studied by scanning electron microscope and transmission electron microscope, and its effects on mechanical properties and wear resistance of high carbon high alloy martensitic steel were also studied with abrasion wear testing machine. The results show that spheroidizing annealing significantly increases the content and size of secondary carbide in forged and air-cooled steel. The secondary carbide refine the austenite grain size by pinning grain boundary and reduce the solid solution content of alloying elements in martensite, which effectively improves the impact toughness of experimental steel. The micron-sized secondary carbide and ductile martensite matrix hinder abrasive cutting and reduce the microscopic fracture on worn surface effectively, which improves the wear resistance of experimental steel. © 2024 Northeast University. All rights reserved.
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页码：490 / 498
页数：8
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