Sr變質對ADC12合金摩擦磨損性能的影響
發(fā)布人：上海艾荔艾合金股份有限公司www.shailiai.cn
更新時間：2016-06-03
利用MMD-1型銷盤式磨損試驗機，采用OM、SEM和EDS研究不同負載對Sr變質ADC12合金的摩擦磨損性能的影響，并探究其與合金顯微組織及力學性能的關系。
Sr變質對ADC12合金摩擦磨損性能的影響Effect of Sr modification on friction and wear properties of ADC12 alloy利用MMD-1型銷盤式磨損試驗機，采用OM、SEM和EDS研究不同負載對Sr變質ADC12合金的摩擦磨損性能的影響，并探究其與合金顯微組織及力學性能的關系。結果表明:當添加0.05%Sr(質量分數(shù))時，合金顯微組織中共晶Si相以顆粒狀或纖維狀均勻分布在晶界，富鐵相則呈短棒狀，此時合金力學性能最佳，且同一負載下其磨損量和摩擦因數(shù)均最低。當負載為100N時，因受到嚴重擠壓變形，合金表面氧化膜發(fā)生破壞;基體合金以塑性屈服和嚴重剝層磨損為主要磨損機理;而當Sr添加量為0.05%時，合金的磨損程度最低，以粘著磨損和磨粒磨損為主要磨損機理，其摩擦磨損性能最優(yōu)異。
The effect of applied load on the friction and wear properties of Sr modified ADC12 alloys, and its relationship with microstructure and mechanical properties were investigated by MMD-1 pin-on-disc wear testing machine, OM, SEM and EDS. The results show that, in the microstructure of alloy modified with 0.05%Sr (mass fraction), eutectic Si phases distribute uniformly at grain boundaries in morphologies of particle-like or fiber-like, and shape of Fe-rich intermetallics transforms to short rod-like, giving rise mechanical properties to the highest. Also the alloy wear volume and friction coefficient reach to the lowest under invariable load. At 100 N, oxide films on worn surface are broken due to the serious extruded deformation. Plastic yielding and severe delamination are mainly in the matrix alloy, while adhesive and abrasive wear characterize in the modified alloy with 0.05%Sr. The wear degree of the latter one is the minimum, and its friction and wear properties are the optimal.
作為值得信賴的合作伙伴和高品質金屬合金的半成品供應商，艾荔艾擁有完善的服務體系和專業(yè)的團隊。在同客戶交易的過程中，我們力求根據(jù)不同的應用需求將我們的產品做到精益求精。針對當前和未來的市場需求，艾荔艾致力于為客戶提供最佳的金屬材料解決方案。
AILIAI
has been a reliable partner and supplier of sophisticated and high-quality
semi-finished products maed of alloys. In dialogue with our customers, we
optimise our products to meet the specific application requirements. AILIAI
develops the best alloy material solutions for current and future
challenges.
獲取更多我們供應的合金和服務信息，請致電086-021-67660801或發(fā)電子郵件kefu@ailiaigroup.com聯(lián)系我們，您也可以通過微博，微信，領英，XING，臉書和推特與我們互動。
For
more information on the alloys and services that we supply,?call
us?at
086-021-67660801 or email us at kefu@ailiaigroup.com. You can also get in touch
on social media, we are constantly active on?Weibo,?Weixin,?LinkedIn,?XING, Facebook?and?Twitter.