本文選題：激光著色技術(shù) + 納秒脈沖激光��； 參考：《應(yīng)用激光》2017年04期

【摘要】：利用納秒級脈沖激光對304不銹鋼表面進(jìn)行著色試驗(yàn),建立激光作用于金屬表面的熱作用模型,利用EDAX分析著色不銹鋼表面金屬元素質(zhì)量比變化,探究激光熱作用對304不銹鋼表面著色效果的影響及不同熱作用過程下的金屬表面氧化的規(guī)律。結(jié)果表明:納秒激光金屬彩色著色過程中存在"激光脈沖直接作用過程"和"激光脈沖擴(kuò)散熱作用過程"兩個(gè)不同機(jī)制的熱作用過程。在快速加熱和快速冷卻的"激光脈沖直接作用過程"中不銹鋼表面更容易產(chǎn)生Cr氧化物;在以擴(kuò)散熱為主導(dǎo)的"激光脈沖擴(kuò)散熱作用過程"中不銹鋼表面更容易產(chǎn)生Fe氧化物。
[Abstract]:The surface of 304 stainless steel was colored by nanosecond pulsed laser. The thermal action model of laser on the surface of stainless steel was established. The variation of the mass ratio of metal elements on the surface of stainless steel was analyzed by EDAX. The effect of laser thermal action on surface coloring of 304 stainless steel and the rules of metal surface oxidation under different thermal action were investigated. The results show that there are two different mechanisms in the coloring process of nanosecond laser metal: "direct action process of laser pulse" and "thermal process of laser pulse diffusion". In the "laser pulse direct action process" of rapid heating and cooling, Cr oxide is more easily produced on the stainless steel surface, and Fe oxide is more easily produced on the stainless steel surface in the "laser pulse diffusion thermal process", which is dominated by the diffusion heat.
【作者單位】： 華南師范大學(xué)廣州市特種光纖光子器件與應(yīng)用重點(diǎn)實(shí)驗(yàn)室;華南師范大學(xué)廣東省微納光子功能材料與器件重點(diǎn)實(shí)驗(yàn)室;
【基金】：廣東省科技資助項(xiàng)目(項(xiàng)目編號:2014B010131004,2014B010124002,2014B090903014,2015B090920003,2016B090917002,2016B090926004) 廣東省自然科學(xué)基金資助項(xiàng)目(項(xiàng)目編號:2016A030313456) 國家重點(diǎn)研發(fā)計(jì)劃資助項(xiàng)目(項(xiàng)目編號:2017YFB1104500)
【分類號】：TN249

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