[作者]   徐加有, 張繼紅,程艷艷
[關(guān)鍵詞] 鎂合金,化學(xué)鍍,結(jié)合強度
[摘要]   利用金相顯微鏡、SEM、能譜儀(EDS),研究了鎂合金AZ91D的化學(xué)鍍Ni-P的結(jié)合強度.結(jié)果表明,鎂合金基體的鍍前處理對鍍層的結(jié)合強度至關(guān)重要.沒有經(jīng)過前處理的鎂合金的鍍層結(jié)合力差,而經(jīng)過嚴格前處理的鍍層結(jié)合力良好.前處理中酸洗、活化以及在對鎂合金基體打磨過程中殘留的雜質(zhì)對鍍層結(jié)合強度的影響較大,特別是Fe、C等雜質(zhì)元素的摻入使得鍍層的結(jié)合強度大大降低;pH值也對鍍層的結(jié)合強度有很大影響,隨著pH值的升高,鍍層的結(jié)合強度降低.

[Abstract] The bond strength of Ni-P coating on Mg alloy AZ91D is studied with metalloscope,SEM,EDS.Results show the pretreatment of basal body of magnesium alloy is important to the bond strength.Bad bond strength was found on the Mg alloy with no pretreatment,while good bond strength was obtained on the coating with strict pretreatment.Acidwashing,activating and impurity in the course of dressing in pretreatment had a great influence on the bond strength,especially impurity element,i.e.Fe,C,etc.,made the bond streng...

[Key words] Mg alloy; electroless plating; bond strength

[author] XU Jia-you; ZHANG Ji-hong; CHENG Yan-yan

本文地址:http://www.bqct.com.cn/news/2008121105929.htm

相關(guān)文章:

通過顯微鏡實驗熔滲銅對高合金燒結(jié)鋼組織的影響
顯微鏡類光學(xué)儀器觀察技術(shù)在棉紡業(yè)中的應(yīng)用
電子顯微鏡邀您參觀和了解液晶分子和它的原理
顯微鏡下三百多年前的重大發(fā)現(xiàn)