间歇喷水淬火对 70SiMnCr 钢锻造磨球耐磨性的影响

IF 0.6 4区材料科学 Q4 METALLURGY & METALLURGICAL ENGINEERING

Metal Science and Heat Treatment Pub Date : 2024-02-19 DOI:10.1007/s11041-024-00974-x

Zhixin Liu, Zhaoyang Song, Baoqi Wang

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引用次数: 0

摘要

研究了用喷水淬火代替传统的水浴淬火来制造∅120 毫米 70SiMnCr 钢制磨球的效率，以减少应力并控制相组成。提出了一种利用喷水冷却锻造磨球的工艺，该工艺可确保在等温条件下发生贝氏体转变并形成特定结构。W70A45W20 工艺在 200 摄氏度下进行 4.5 小时，可获得最终体积硬度为 56 HRC、韧性为 73 J 的钢球。经过这种热处理方式后，钢球具有很高的耐磨性，其表面磨损的主要机理是塑性变形和微切削。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Effect of Intermittent Water Spray Quenching on the Wear Resistance of Forged Grinding Balls Made of Steel 70SiMnCr

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Effect of Intermittent Water Spray Quenching on the Wear Resistance of Forged Grinding Balls Made of Steel 70SiMnCr

The efficiency of replacing traditional quenching in a bath by spray quenching to manufacture grinding balls ∅120 mm made of 70SiMnCr steel to reduce stresses and control the phase composition is investigated. A process of forging grinding balls with the use of water spray cooling is suggested, which ensures bainite transformation under isothermal conditions and formation of the specified structure. The W70A45W20 process, implemented at 200°C for 4.5 h, yields balls with a final volume hardness of 56 HRC and a toughness of 73 J. After this mode of heat treatment, the steel balls have a high wear resistance, and the main mechanism of their surface wear is plastic deformation and micro-cutting.

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来源期刊

Metal Science and Heat Treatment 工程技术-冶金工程

CiteScore

1.20

自引率

16.70%

发文量

102

审稿时长

4-8 weeks

期刊介绍： Metal Science and Heat Treatment presents new fundamental and practical research in physical metallurgy, heat treatment equipment, and surface engineering. Topics covered include: New structural, high temperature, tool and precision steels; Cold-resistant, corrosion-resistant and radiation-resistant steels; Steels with rapid decline of induced properties; Alloys with shape memory effect; Bulk-amorphyzable metal alloys; Microcrystalline alloys; Nano materials and foam materials for medical use.