机械制造文摘-焊接分册
機械製造文摘-銲接分冊
궤계제조문적-한접분책
JIXIE ZHIZAO WENZHAI-HANJIE FENCE
2013年
6期
14-16
,共3页
黄恒钧%刘东旭%牛超楠%王慧文%王佳杰
黃恆鈞%劉東旭%牛超楠%王慧文%王佳傑
황항균%류동욱%우초남%왕혜문%왕가걸
超音速火焰喷涂(HVAF)%WC-Co涂层%微观组织%磨损性能
超音速火燄噴塗(HVAF)%WC-Co塗層%微觀組織%磨損性能
초음속화염분도(HVAF)%WC-Co도층%미관조직%마손성능
high velocity air-fuel spray(HVAF)%WC-Co coatings%microstructures%wear property
采用超音速火焰喷涂（HVAF）工艺在Q235基体上制备了WC-Co涂层，并研究了涂层的显微组织和磨损性能。结果表明：WC-Co涂层与基体结合良好，涂层致密，孔隙率较低，微观形貌呈层状结构。EDS能谱表明涂层发生了较低氧化。涂层的显微硬度高达1244 HV0.1。涂层开始时失重磨损率较高，而且随着法向载荷的增大而增加，随着时间增加磨损率不断降低，体现了WC-Co涂层优异的耐磨性能。
採用超音速火燄噴塗（HVAF）工藝在Q235基體上製備瞭WC-Co塗層，併研究瞭塗層的顯微組織和磨損性能。結果錶明：WC-Co塗層與基體結閤良好，塗層緻密，孔隙率較低，微觀形貌呈層狀結構。EDS能譜錶明塗層髮生瞭較低氧化。塗層的顯微硬度高達1244 HV0.1。塗層開始時失重磨損率較高，而且隨著法嚮載荷的增大而增加，隨著時間增加磨損率不斷降低，體現瞭WC-Co塗層優異的耐磨性能。
채용초음속화염분도（HVAF）공예재Q235기체상제비료WC-Co도층，병연구료도층적현미조직화마손성능。결과표명：WC-Co도층여기체결합량호，도층치밀，공극솔교저，미관형모정층상결구。EDS능보표명도층발생료교저양화。도층적현미경도고체1244 HV0.1。도층개시시실중마손솔교고，이차수착법향재하적증대이증가，수착시간증가마손솔불단강저，체현료WC-Co도층우이적내마성능。
The WC-Co coatings were deposited on Q235 substrate by high velocity air -fuel spray (HVAF) process. Microstructures and wear property of the coatings have studied in this paper. The results show that the coatings bond well with the substrate. The coatings have layered structure with high density and low void ratio. EDS spectrum showed that the coatings low oxidation occurr. The maximum hardness of the coatings is 1 244 HV0.1. The wear rate of the coatings is higher at the beginning, increase with the increase of normal load and decrease with increase over time. This shows that the WC-Co coatings have excellent wear resistance.
