仪器网

欢迎您: 免费注册 仪器双拼网址:www.yiqi.com
首页-资讯-资料-产品-求购-招标-品牌-展会-行业应用-社区-供应商手机版
官方微信
中国仪器网• 行业应用
仪器网/ 行业应用/ 解决方案/ 097 材料成分工艺路线对轴承滚动/滑动摩擦实验的影响

097 材料成分工艺路线对轴承滚动/滑动摩擦实验的影响

点击这里给我发消息
内容节点
概述
实验/设备条件
样品提取
实验/操作方法
实验结果/结论
仪器/耗材清单
Abstract

The commercialattractivenessof rolls with greaterresistanceto wearandfatiguedamageis substantial.providing reducedrol领 mil
down times. increasedroll life. reducedproductsurfacedefectsand improvedstockgaugetolerances.Relatively little is known about1&'
wearmechanismsof thesematerialswhich limit the usefullife of cold rol领 mill work rolls.Two steelsof composition0.8%C/3%Craid
0.8%C/5%Cr. which are representativeof industry standardmaterials.havebeentestedin a rol领-sliding configuration (slippage.8C1t-againsta high speedsteel (M2) counterface.A comparisonhasbeenmadebetweensamplesmanufacturedby conventional processiDl (castingandforging) andby sprayforming. Sprayforming provideda microstructuresimilar to thatof the heavilyforged materialbutwitJt afiner averagecarbidesize (134 nm in thesprayformedand317nm in theforged,bothfor the3%Crsteels)andthesprayformedmaterill did not containthe occasionalcoarsecarbides( - 2 ~m) found in theforgedmaterial.The increasein Cr contentfrom 3% to 5%changed thecarbidefrom (Fe.Cr)3C (3%Cr steel) to (Fe.Cr)7C3(5%Crsteel) in bothsprayformedandforgedmaterials.However.boththe~
sizeandcarbidetype hadlittle effectonwearratewhentestedin thequenchedandtemperedcondition.Temperingof thequenchedsteelwa.s;
undertakenin thetemperaturerange200-500 °c. which yieldedhardnessin the range540-890 H. for the 3% Cr steeland470-880 H. fIX" the 5% Cr steel. The wear coefficient decreasedsignificantly for an increase in hardnessfrom to 470 H.(k-l.72X 10-5mm3 N-1 m-l) ~ 750 H. (k-l.35X10-6 mm3N-1 m-l)but only fell slightly for hardnessvaluesabove750 H.. The friction coefficient was0.49-0.6.1': irrespectiveof loador materialtemper.Characterisationof worn surfacesindicatedthatsurfacestrainwaslimited to adepthof - 5-15 ~
相关产品
相关解决方案
热门解决方案
最新解决方案
在线留言
官方微信

仪器网微信服务号

扫码获取最新信息


仪器网官方订阅号

扫码获取最新信息

在线客服

咨询客服

在线客服
工作日:  9:00-18:00
联系客服 企业专属客服
电话客服:  400-822-6768
工作日:  9:00-18:00
订阅商机

仪采招微信公众号

采购信息一键获取海量商机轻松掌控