發(fā)布時(shí)間：2018-06-10 10:12

  本文選題：陶瓷涂層 + 結(jié)合質(zhì)量�。� 參考：《清華大學(xué)學(xué)報(bào)(自然科學(xué)版)》2017年05期

【摘要】：金屬基體表面涂覆的非金屬涂層可以提高基體的耐腐蝕、耐高溫等性能,涂層的結(jié)合質(zhì)量是涂層性能的重要指標(biāo)。傳統(tǒng)的超聲透射和反射方法可以實(shí)現(xiàn)對(duì)涂層脫粘的檢測(cè),但是對(duì)于非脫粘涂層結(jié)合質(zhì)量的檢測(cè)較為困難。該文采用超聲斜入射反射檢測(cè)法,對(duì)不同結(jié)合質(zhì)量的非金屬涂層進(jìn)行檢測(cè),利用頻譜分析技術(shù)計(jì)算得到斜入射非線性系數(shù)。檢測(cè)結(jié)果表明:斜入射非線性系數(shù)可以反映非金屬涂層的結(jié)合質(zhì)量,涂層的脫粘情況可以通過(guò)基頻的幅值判斷,而在非脫粘情況下,斜入射非線性系數(shù)越大,則涂層結(jié)合質(zhì)量越差。
[Abstract]:The non-metallic coating on the surface of metal substrate can improve the corrosion resistance and high temperature resistance of the substrate. The bonding quality of the coating is an important index of the coating performance. The traditional ultrasonic transmission and reflection methods can be used to detect the debonding of the coating, but it is difficult to detect the bonding quality of the non-debonding coating. In this paper, ultrasonic oblique incidence reflection detection method is used to detect nonmetallic coatings with different bonding quality, and the nonlinear coefficient of oblique incidence is calculated by spectrum analysis technique. The test results show that the nonlinear coefficient of oblique incidence can reflect the bonding quality of the non-metallic coating, and the debonding of the coating can be judged by the amplitude of the fundamental frequency, while in the case of non-debonding, the nonlinear coefficient of oblique incidence is greater. Then the coating bonding quality is worse.
【作者單位】： 清華大學(xué)先進(jìn)成形制造教育部重點(diǎn)實(shí)驗(yàn)室摩擦學(xué)國(guó)家重點(diǎn)實(shí)驗(yàn)室;
【分類號(hào)】：TG174.453

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本文編號(hào)：2002853