Exploring the potential of coal derived graphite as next generation lubricant additive for multifunctional applications

IF 1.9 Q3 ENGINEERING, MANUFACTURING Manufacturing Letters Pub Date : 2024-10-01 DOI:10.1016/j.mfglet.2024.09.035
K. Uday Venkat Kiran , Alexandar Azenkeng , Sougata Roy
{"title":"Exploring the potential of coal derived graphite as next generation lubricant additive for multifunctional applications","authors":"K. Uday Venkat Kiran ,&nbsp;Alexandar Azenkeng ,&nbsp;Sougata Roy","doi":"10.1016/j.mfglet.2024.09.035","DOIUrl":null,"url":null,"abstract":"<div><div>In the present study, the friction and wear characteristics of steel/steel contact under reciprocating sliding conditions were investigated using composite mixtures made from Polyalphaolefin 4 (PAO4) as base oil lubricant and North Dakota lignite-derived graphite (LG) as high-value carbon additive. The results show that addition of 1 wt% LG to PAO4 led to a reduction in the friction coefficient and wear volume by ∼15 % and ∼13 %, respectively. In addition, the oxidation induction time (OIT) at 160 °C was increased by ∼29 %, which further indicates good stability of the formulated composite lubricant against oxidative degradation. The primary wear mechanism on AISI 52100 steel flat and counter-body was found to be abrasive wear under high-contact stress reciprocating sliding conditions, where tribo-oxide films of 100–200 nm were observed on the wear tracks of 52100 steel surfaces using focused ion beam scanning transmission electron microscopy (FIB-STEM). Furthermore, cross-sectional analysis of the wear track of AISI 52100 steel revealed that 1 wt% of LG additive reduced the thickness of the sub-surface deformation zone by 44 %, which indicates higher load-bearing capacity and improved wear resistance.</div></div>","PeriodicalId":38186,"journal":{"name":"Manufacturing Letters","volume":"41 ","pages":"Pages 296-303"},"PeriodicalIF":1.9000,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Manufacturing Letters","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S221384632400097X","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENGINEERING, MANUFACTURING","Score":null,"Total":0}
引用次数: 0

Abstract

In the present study, the friction and wear characteristics of steel/steel contact under reciprocating sliding conditions were investigated using composite mixtures made from Polyalphaolefin 4 (PAO4) as base oil lubricant and North Dakota lignite-derived graphite (LG) as high-value carbon additive. The results show that addition of 1 wt% LG to PAO4 led to a reduction in the friction coefficient and wear volume by ∼15 % and ∼13 %, respectively. In addition, the oxidation induction time (OIT) at 160 °C was increased by ∼29 %, which further indicates good stability of the formulated composite lubricant against oxidative degradation. The primary wear mechanism on AISI 52100 steel flat and counter-body was found to be abrasive wear under high-contact stress reciprocating sliding conditions, where tribo-oxide films of 100–200 nm were observed on the wear tracks of 52100 steel surfaces using focused ion beam scanning transmission electron microscopy (FIB-STEM). Furthermore, cross-sectional analysis of the wear track of AISI 52100 steel revealed that 1 wt% of LG additive reduced the thickness of the sub-surface deformation zone by 44 %, which indicates higher load-bearing capacity and improved wear resistance.
查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
探索煤衍生石墨作为下一代多功能润滑油添加剂的潜力
本研究使用聚α烯烃 4(PAO4)作为基础油润滑剂和北达科他州褐煤衍生石墨(LG)作为高价值碳添加剂制成的复合混合物,研究了往复滑动条件下钢/钢接触的摩擦和磨损特性。结果表明,在 PAO4 中添加 1 wt% 的 LG 可使摩擦系数和磨损量分别降低 ∼ 15 % 和 ∼ 13 %。此外,160 °C 下的氧化诱导时间(OIT)增加了 ∼ 29 %,这进一步表明所配制的复合润滑剂具有良好的抗氧化降解稳定性。利用聚焦离子束扫描透射电子显微镜(FIB-STEM)在 52100 钢表面的磨损轨迹上观察到 100-200 nm 的三氧化物薄膜,发现 AISI 52100 钢平面和反面体的主要磨损机制是高接触应力往复滑动条件下的磨料磨损。此外,对 AISI 52100 钢磨损轨迹的横截面分析表明,1 wt% 的 LG 添加剂可将表面下变形区的厚度减少 44%,这表明该添加剂具有更高的承载能力和耐磨性。
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
Manufacturing Letters
Manufacturing Letters Engineering-Industrial and Manufacturing Engineering
CiteScore
4.20
自引率
5.10%
发文量
192
审稿时长
60 days
期刊最新文献
Applicability of circularity protocols to extend the lifetime of a thermoplastic pultrusion line: A case study Feasibility study of using friction stir extruded recycled aluminum rods for welding and additive manufacturing Scalable and efficient fabrication of surface microstructures using a small wheeled robot with a vibration-cutting tool Influence of parameter variation and interlayer temperature control in wall angle, curvature and measurement methodology of ER70S-6 parts obtained by WAAM Hard and wear resistant AISI304 stainless steel clad layer deposited on mild steel substrate by TIG cladding
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1