(1. 中國(guó)科學(xué)院寧波材料技術(shù)與工程研究所 中國(guó)科學(xué)院海洋新材料與應(yīng)用技術(shù)重點(diǎn)實(shí)驗(yàn)室 浙江省海洋材料與防護(hù)技術(shù)重點(diǎn)實(shí)驗(yàn)室，寧波 315201；
2. 上海大學(xué) 材料科學(xué)與工程學(xué)院，上海 200012)
摘 要: 為了改善高速鋼上AlTiN 涂層的組織和力學(xué)性能，研究不同偏壓下制備的多弧離子鍍AlTiN薄膜對(duì)高速鋼表面的力學(xué)性能、切削液環(huán)境下的摩擦學(xué)行為、弱堿環(huán)境下的電化學(xué)腐蝕性能的影響。采用SEM和XRD研究不同偏壓下薄膜的表面及截面形貌和相組成變化，采用納米壓痕儀測(cè)試AlTiN 涂層硬度，利用往復(fù)式摩擦試驗(yàn)機(jī)研究干摩擦和切削液兩種摩擦環(huán)境下的涂層的摩擦學(xué)性能。采用電化學(xué)工作站測(cè)試系統(tǒng)對(duì)比研究涂層的耐蝕性能。結(jié)果表明：涂層的硬度和耐磨性隨著偏壓的增加而明顯增大；當(dāng)偏壓為80 V時(shí)，AlTiN涂層結(jié)構(gòu)致密，在干摩擦及切削液環(huán)境下都具有較好摩擦學(xué)性能；當(dāng)偏壓為20 V時(shí)，AlTiN涂層在弱堿環(huán)境下具有良好的耐腐蝕性能。
關(guān)鍵字: AlTiN涂層；偏壓；摩擦性能；耐腐蝕性能
（1. Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China;
2. School of Materials Science and Engineering, Shanghai University, Shanghai 200012, China）
Abstract:To improve the microstructure and mechanical properties of high-speed steel, the effects of bias on the mechanical performance, tribological behavior in cutting fluid environment and electrochemical corrosion behavior of AlTiN coatings deposited on high speed steel by arc ion plating were investigated. The morphologies, phase structure and hardness of AlTiN coatings under different bias were measured by SEM, XRD and Nano-Indenter, respectively. The tribological properties and corrosion resistance of AlTiN coatings were tested by reciprocating friction tester and electrochemical work station. The results indicate that the hardness and wear resistance are improved significantly with the increase of bias. When the bias voltage is 80 V, AlTiN coating with compact structure displays good tribological properties in both air and cutting fluid environment. When the bias voltage is 20 V, AlTiN coating exhibits better corrosion resistance in weak alkaline environment.
Key words: AlTiN coating; bias; tribology performance; corrosion resistance
