Unveiling the effect of electron beam shock on the microstructure and wear resistance of Cr12MoV steel

IF 4.3 3区材料科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC

ACS Applied Electronic Materials Pub Date : 2024-05-30 DOI:10.1016/j.vacuum.2024.113347

Rong Wang, Zhenfei Song, Deqiang Wei, Xinkai Li, Jinjie Song, Zhenzhao Mo, Yitao Weng, Fengtao Yang

{"title":"Unveiling the effect of electron beam shock on the microstructure and wear resistance of Cr12MoV steel","authors":"Rong Wang, Zhenfei Song, Deqiang Wei, Xinkai Li, Jinjie Song, Zhenzhao Mo, Yitao Weng, Fengtao Yang","doi":"10.1016/j.vacuum.2024.113347","DOIUrl":null,"url":null,"abstract":"<div><p>Enhancing wear resistance is the core factor that prolonged the life of the Cr12MoV mold and elevates the quality of the components produced. Hence, Cr12MoV mold steel was shocked by scanning electron beam (SEB) to improve wear resistance. Results revealed that the segregation eutectic carbides in the surface structure of Cr12MoV steel were dissolved during the shock process of various beam electron beams, and the small particles of carbides produced are helpful in reducing wear. With an energy density of 20 J/mm<sup>2</sup>, surface roughness of Cr12MoV steel decreases from 2.9 μm to 1.2 μm, the friction coefficient decreases from 0.85 to 0.52. Additionally, the wear capacity also decreases from 0.036 mm<sup>3</sup> to 0.011 mm<sup>3</sup>, and surface wear resistance increases by over 3 times. Grain refinement-induced surface hardening is the primary cause underlying performance improvement. This study provides ideas for improving the surface quality of Cr12MoV steel.</p></div>","PeriodicalId":3,"journal":{"name":"ACS Applied Electronic Materials","volume":null,"pages":null},"PeriodicalIF":4.3000,"publicationDate":"2024-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"ACS Applied Electronic Materials","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0042207X24003932","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}

引用次数: 0

Abstract

Enhancing wear resistance is the core factor that prolonged the life of the Cr12MoV mold and elevates the quality of the components produced. Hence, Cr12MoV mold steel was shocked by scanning electron beam (SEB) to improve wear resistance. Results revealed that the segregation eutectic carbides in the surface structure of Cr12MoV steel were dissolved during the shock process of various beam electron beams, and the small particles of carbides produced are helpful in reducing wear. With an energy density of 20 J/mm², surface roughness of Cr12MoV steel decreases from 2.9 μm to 1.2 μm, the friction coefficient decreases from 0.85 to 0.52. Additionally, the wear capacity also decreases from 0.036 mm³ to 0.011 mm³, and surface wear resistance increases by over 3 times. Grain refinement-induced surface hardening is the primary cause underlying performance improvement. This study provides ideas for improving the surface quality of Cr12MoV steel.

Abstract Image

查看原文本刊更多论文

揭示电子束冲击对 Cr12MoV 钢微观结构和耐磨性的影响

提高耐磨性是延长 Cr12MoV 模具寿命和提高部件质量的核心因素。因此，对 Cr12MoV 模具钢进行了扫描电子束（SEB）冲击，以提高其耐磨性。结果表明，在各种电子束的冲击过程中，Cr12MoV 钢表面结构中的偏析共晶碳化物被溶解，产生的小颗粒碳化物有助于降低磨损。能量密度为 20 J/mm2 时，Cr12MoV 钢的表面粗糙度从 2.9 μm 降至 1.2 μm，摩擦系数从 0.85 降至 0.52。此外，耐磨能力也从 0.036 mm3 降至 0.011 mm3，表面耐磨性增加了 3 倍多。晶粒细化引起的表面硬化是性能改善的主要原因。这项研究为改善 Cr12MoV 钢的表面质量提供了思路。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

ACS Applied Electronic Materials Multiple-

CiteScore

7.20

自引率

4.30%

发文量

567