新技术新工艺
新技術新工藝
신기술신공예
New Technology & New Process
2015年
10期
100-102
,共3页
田瀚林%栾道成%张仁进%熊师兵
田瀚林%欒道成%張仁進%熊師兵
전한림%란도성%장인진%웅사병
硬质合金%多层复合涂层%XRD%SEM
硬質閤金%多層複閤塗層%XRD%SEM
경질합금%다층복합도층%XRD%SEM
cemented carbide%multilayer coating%XRD%SEM
采用自主研发的超细硬质合金 WC-6% Co-6%(W,Ti,Ta)C,利用化学涂层方法制备了TiCN-Al2 O3-TiN 多层复合涂层。利用 X 射线衍射仪、扫描电镜、自动划痕仪和显微硬度计对涂层进行了结构分析和性能检测。结果表明,整个涂层组织由3层组成,与基体结合层为 TiCN,次外层为 Al2 O3,最外层为 TiN,制得的 Al2 O3涂层主要为κ-Al2 O3晶型,κ-Al2 O3晶型有利于细化晶粒,多层复合涂层剥落的形式不仅使涂层和基体间会出现分离,涂层和涂层间也会出现分离,Al2 O3涂层会降低涂层与基体之间的结合强度,涂层的平均结合力为69 N,平均表面显微硬度为2225 HV。
採用自主研髮的超細硬質閤金 WC-6% Co-6%(W,Ti,Ta)C,利用化學塗層方法製備瞭TiCN-Al2 O3-TiN 多層複閤塗層。利用 X 射線衍射儀、掃描電鏡、自動劃痕儀和顯微硬度計對塗層進行瞭結構分析和性能檢測。結果錶明,整箇塗層組織由3層組成,與基體結閤層為 TiCN,次外層為 Al2 O3,最外層為 TiN,製得的 Al2 O3塗層主要為κ-Al2 O3晶型,κ-Al2 O3晶型有利于細化晶粒,多層複閤塗層剝落的形式不僅使塗層和基體間會齣現分離,塗層和塗層間也會齣現分離,Al2 O3塗層會降低塗層與基體之間的結閤彊度,塗層的平均結閤力為69 N,平均錶麵顯微硬度為2225 HV。
채용자주연발적초세경질합금 WC-6% Co-6%(W,Ti,Ta)C,이용화학도층방법제비료TiCN-Al2 O3-TiN 다층복합도층。이용 X 사선연사의、소묘전경、자동화흔의화현미경도계대도층진행료결구분석화성능검측。결과표명,정개도층조직유3층조성,여기체결합층위 TiCN,차외층위 Al2 O3,최외층위 TiN,제득적 Al2 O3도층주요위κ-Al2 O3정형,κ-Al2 O3정형유리우세화정립,다층복합도층박락적형식불부사도층화기체간회출현분리,도층화도층간야회출현분리,Al2 O3도층회강저도층여기체지간적결합강도,도층적평균결합력위69 N,평균표면현미경도위2225 HV。
TiCN-Al2 O3-TiN multilayer coating is built by adapting self-developed cemented carbide WC-6%Co-6%(W, Ti,Ta)C and using chemical coating methods.The structure analysis and performance test of coating layer is examined by X-ray diffraction,scanning electron microscope,auto-scratch tester and microhardness tester.The result indicates that the whole coating layer is consisted of three layers.Bonding the substrate is TiCN,the middle layer is Al2 O3 and outmost layer is TiN.Al2 O3 coating is mainly composed of the crystal form ofκ-Al2 O3 which is good for the fined grain.The desquamate form multi-layer composite form will not only shown as coating and matrix separating,but also the separating between coat-ing layers,meanwhile,the Al2 O3 coating layer will decrease the bounding strength between coating and matrix.The average bonding force of coating layer is 69 N and average surface hardness is 2 225 HV.
