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adhesion wear on Tool Rake and Flank Faces in Dry Cutting of Ti-6Al-4V

Chinese Journal of Mechanical Engineering 2011年第6期24卷 1089-1094页

作者： DENG Jianxin LI Yousheng ZHANG Hui Department of Mechanical Engineering Shandong UniversityJinan 250061China

Titanium alloys are very chemically reactive and,therefore,have a tendency to weld to the cutting tool during *** deterioration in the tool life caused by adhesion is a serious problem when titanium alloys are cut using carbide *** chemical reactivity of titanium alloys with carbide tool materials and their consequent welding by adhesion onto the cutting tool during dry cutting leads to excessive chipping,premature tool failure,and poor surface *** the present study,dry turning and milling tests were carried out on Ti-6Al-4V alloys with WC?Co carbide *** adhesion on the tool rake and flank face was explored,the adhesive joint interface between the workpiece materials and tools were *** observation showed that adhesion can be observed both on the rake and the flank face,and was more pronounced in rake face than in flank *** was evidence of element diffusion from the tool rake face to the adhering layer(vice versa) through the adhesive joint interface,which leads to the tool element loss and microstructure *** the adhering materials at the flank face can be easily separated from the joint interface owing to the lower temperature and less pressure at the flank face,the adhesive wear attack results in an abrasive wear in the flank ***,adhesion is more notable in turning than in *** proposed research provides references for studying the adhesion between the workpiece materials and the tools,the adhesion mechanisms and their effect on the tool wear.

关键词： adhesion wear dry cutting carbide tools Ti-6Al-4V alloy

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adhesion wear of Carbide Tool when Machining GH 907

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Journal of Wuhan University of Technology(Materials Science) 2010年第3期25卷 469-473页

作者：邵芳 Shandong Binzhou Vacational College

The adhesion wear of cemented carbide tool when machining GH907 was studied with white light interferometer,infrared imaging,and *** adhesion wear morphology,wear mechanism and the wear rule of adhesion were analyzed,and the effect of different cutting time and different cutting speed on adhesive wear were *** conclusion will provide useful references for the optimization of cutting parameters and the improvement of the tool life.

关键词： GH907 adhesion wear cemented carbide tool

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Fretting wear behaviour of high-nitrogen stainless bearing steel under lubrication condition

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Journal of Iron and Steel Research International 2020年第7期27卷 849-866页

作者： Huan Lin Mao-sheng Yang Bai-po Shu College of Materials Science and Engineering Kunming University of Science and TechnologyKunming 650093YunnanChina Institute for Special Steel Central Iron and Steel Research InstituteBeijing 100081China

The fretting wear performance of high-nitrogen stainless bearing steel(40Cr15Mo2VN)under lubrication conditions was ***-based grease was preparedusing MoS2 and carbon nanotubes(CNTs)as *** 52100 steel ball was used in four-ball test to evaluate the extreme pressure property and wear resistance of *** four-ball test,the grease adding 0.8 mass%MoS2 and 0.8 mass%CNTs,respectively,was chosen and used for fretting *** 52100 ball and 40Cr15Mo2VN steel disc were used as the upper and lower samples for fretting *** results showed that wear power consumption increased with the increase in both sliding velocity and contact *** initial contact stress was 2.047 GPa,the main wear mechanisms were abrasive wear and plastic deformation as the velocity increased 0.028 to 0.112 m/*** the velocity was 0.028 m/s,the main wear mechanisms changed abrasive wear to adhesion wear and finally to abrasive wear and adhesion wear as the initial contact stress increased 1.788 to 2.579 *** volume loss grew sharply becaof the changes in wear *** this condition,the volume loss growth rate can be divided into three regions according to different wear power consumption ranges corresponding to different wear mechanisms.

关键词： High-nitrogen steel Sliding velocity Contact stress adhesion wear Abrasive wear wear power consumption

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Effect of particulate reinforcement on wear behavior of magnesium matrix composites

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Transactions of Nonferrous Metals Society of China 2012年第11期22卷 2659-2664页

作者：胡勇饶丽华东交通大学载运工具与装备教育部重点实验室南昌330013

The friction and wear behavior of magnesium matrix composites reinforced with particulate Mg2Si was characterized. The influence of Si, applied load and sliding rate on the wear behavior of Mg2Si/AM60 magnesium matrix composites was studied. The results indicate that the particulate Mg2Si can be synthesized by adding Si into magnesium alloy. The wear properties of AM60 magnesium alloy are significantly improved with MgzSi particles. The wear mass losses of AM60 magnesium alloy and MgaSi/AM60 magnesium matrix composites decrease with increase in applied load and sliding rate. The wear feature of the AM60 magnesium alloy is adhesion wear. The wear mechanism of Mg2Si/AM60 magnesium matrix composites transforms from abrasive wear to adhesion wear with the increase of load.

关键词： magnesium alloy Mg2Si/AM60 composite friction wear wear mechanism abrasive wear adhesion wear

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Friction and wear behavior of structural Ceramics sliding against bearing steel under vacuum condition

Friction and wear behavior of structural Ceramics sliding ag...

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2011 International Conference on Advanced Materials and Computer Science(ICAMCS 2011)

作者： Tong Yongxing Wang Liqin Gu le Peng Bo School of Mechanica1 and Electronic Engineering Harbin Institute of Technology The higher educational key laboratory for Measuring & Control Technology and Instrumentations of Heilongjiang Province Harbin University of Science and Technology

The friction and wear behavior of Si3N4, Si C and Zr O2 sliding against M50 bearing steel under vacuum condition at various applied load were investigated. The results showed that the properties of different ceramic materials cause the difference in wear behaviors. The coefficient of friction was lowest in Si C and M50 bearing steel couple than other cases for graphitic carbon replaced carbidic carbon at the worn layer of Si C. The specific wear rate of Zr O2 was highest and the lowest was Si3N4. The ceramic ball materials have transferred on M50 bearing steel surfaces and tribofilm consistently formed on the ceramic balls wearing surfaces. Dominant wear behaviors for three structural ceramics were adhesion abrasion, plastic deformation and brittle fracture. The couple with Si3N4 and M50 showed the best operating conditions for friction and wear resistance under higher applied load.

关键词： Structural ceramics Vacuum condition M50 adhesion wear Tribochemical

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