CAJ | 학술논문

为解决电泳沉积过程中的水分解问题，采用直流脉冲电泳沉积法制备304不锈钢负载型TiN涂层，探究涂层的形成规律，并利用扫描电子显微镜（SEM ）、X射线衍射（XRD）及辉光放电光谱（GDS ）等检测手段对 T iN涂层的形貌、物相及成分进行了表征。结果表明，采用直流脉冲电压可以减弱水电解对T iN 涂层带来的负面影响；脉冲电压频率对涂层的形貌及沉积速率有重要影响，在5～30 Hz频率范围，可形成较为均匀致密的 TiN 涂层，且 TiN 的沉积速率随频率的增大而逐渐减小；在T iN 涂层与不锈钢基体间的界面处，各元素含量均随深度的变化呈梯度分布，有利于涂层与基体间的良好结合。本研究将为水悬浮液中电泳沉积不锈钢负载 T iN 涂层的制备提供理论基础。
위해결전영침적과정중적수분해문제，채용직류맥충전영침적법제비304불수강부재형TiN도층，탐구도층적형성규률，병이용소묘전자현미경（SEM ）、X사선연사（XRD）급휘광방전광보（GDS ）등검측수단대 T iN도층적형모、물상급성분진행료표정。결과표명，채용직류맥충전압가이감약수전해대T iN 도층대래적부면영향；맥충전압빈솔대도층적형모급침적속솔유중요영향，재5～30 Hz빈솔범위，가형성교위균균치밀적 TiN 도층，차 TiN 적침적속솔수빈솔적증대이축점감소；재T iN 도층여불수강기체간적계면처，각원소함량균수심도적변화정제도분포，유리우도층여기체간적량호결합。본연구장위수현부액중전영침적불수강부재 T iN 도층적제비제공이론기출。
To tackle the problem of water hydrolysis during electrophovetic deposition (EPD) process in aqueous suspension ,the use of pulsed‐direct current (DC) fields instead of DC fields is an attractive solution .In this work ,titanium nitride (TiN ) coatings were prepared on 304 stain‐less steel (SS ) substrates through pulsed‐DC EPD in an aqueous suspension of nanosized TiN powder and the growth rules of TiN coatings were studied .The scanning electron microscopy (SEM ) ,X‐ray diffraction (XRD) and glow discharge spectrometry (GDS) were employed to char‐acterize the samples’ morphology ,structure and composition .It turned out that the negative influ‐ence on TiN coatings from water hydrolysis was significantly relieved by adopting pulsed‐DC volt‐age .The frequency is a key factor to influence the depositing speed and morphology of TiN coat‐ings .In the range of 5~30 Hz ,smooth and uniform TiN coatings were obtained and the deposi‐tion rate of TiN coating decreased with increasing frequency .The elements in the interface layer between TiN coating and SS substrate showed gradient distribution ,which is beneficial to the ad‐hesion strength of TiN coating .This study will provide theoretical reference for the preparation of SS‐based TiN coatings via EPD in aqueous suspension .