Investigation on the role of microstructure and temperature on tribological characteristics of fine-grained ZE41 Mg alloy

IF 1.6 Q4 MATERIALS SCIENCE, COATINGS & FILMS Tribology - Materials, Surfaces & Interfaces Pub Date : 2021-07-27 DOI:10.1080/17515831.2021.1951539

M. Venkataiah, T. Anup Kumar, K. Venkata Rao, S. Anand Kumar, R. Dumpala, B. Ratna Sunil

{"title":"Investigation on the role of microstructure and temperature on tribological characteristics of fine-grained ZE41 Mg alloy","authors":"M. Venkataiah, T. Anup Kumar, K. Venkata Rao, S. Anand Kumar, R. Dumpala, B. Ratna Sunil","doi":"10.1080/17515831.2021.1951539","DOIUrl":null,"url":null,"abstract":"ABSTRACT In the current work, ZE41 Mg alloy was processed by friction stir processing (FSP) to achieve grain refinement. In addition to grain refinement, decreased intermetallic phase (MgZn) was also observed after FSP. Increased micro-hardness was observed for the processed ZE41 Mg alloy compared to the unprocessed base alloy. X-ray diffraction (XRD) studies demonstrated the texture characteristics in FSPed ZE41. Reciprocating wear studies conducted at three different temperatures, i.e. room temperature, 125 °C, and 250 °C showed lower mass loss for the processed alloy compared to that of the base alloy, particularly at elevated temperatures. This behavior can be understood by considering the benefit gained from the smaller grains and decreased amount of intermetallic phase in the processed alloy, which reduced the abrasion wear. Hence, the present study suggests that the grain refinement and decreased MgZn phase significantly improve the temperature-dependent tribological characteristics of ZE41 Mg alloy. GRAPHICAL ABSTRACT","PeriodicalId":23331,"journal":{"name":"Tribology - Materials, Surfaces & Interfaces","volume":null,"pages":null},"PeriodicalIF":1.6000,"publicationDate":"2021-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/17515831.2021.1951539","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Tribology - Materials, Surfaces & Interfaces","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1080/17515831.2021.1951539","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MATERIALS SCIENCE, COATINGS & FILMS","Score":null,"Total":0}

引用次数: 2

Abstract

ABSTRACT In the current work, ZE41 Mg alloy was processed by friction stir processing (FSP) to achieve grain refinement. In addition to grain refinement, decreased intermetallic phase (MgZn) was also observed after FSP. Increased micro-hardness was observed for the processed ZE41 Mg alloy compared to the unprocessed base alloy. X-ray diffraction (XRD) studies demonstrated the texture characteristics in FSPed ZE41. Reciprocating wear studies conducted at three different temperatures, i.e. room temperature, 125 °C, and 250 °C showed lower mass loss for the processed alloy compared to that of the base alloy, particularly at elevated temperatures. This behavior can be understood by considering the benefit gained from the smaller grains and decreased amount of intermetallic phase in the processed alloy, which reduced the abrasion wear. Hence, the present study suggests that the grain refinement and decreased MgZn phase significantly improve the temperature-dependent tribological characteristics of ZE41 Mg alloy. GRAPHICAL ABSTRACT

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

微观组织和温度对细晶ZE41镁合金摩擦学特性影响的研究

摘要采用搅拌摩擦法(FSP)对ZE41镁合金进行了晶粒细化处理。除了晶粒细化外，FSP后还观察到金属间相(MgZn)的减少。与未加工的基体合金相比，加工后的ZE41镁合金显微硬度有所提高。x射线衍射(XRD)研究证实了FSPed ZE41的织构特征。在室温、125°C和250°C三种不同温度下进行的往复磨损研究表明，与基体合金相比，加工合金的质量损失更低，尤其是在高温下。考虑到加工合金中更小的晶粒和更少的金属间相所带来的好处，这种行为可以被理解为减少了磨损。因此，本研究表明，晶粒细化和MgZn相的减少显著改善了ZE41镁合金的温度依赖摩擦学特性。图形抽象

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分钟内获得全文去求助

来源期刊

Tribology - Materials, Surfaces & Interfaces MATERIALS SCIENCE, COATINGS & FILMS-

CiteScore

2.80

自引率

0.00%

发文量