本文關(guān)鍵詞： 電鑄 黃金 織構(gòu)系數(shù) 維氏硬度　出處：《人工晶體學(xué)報(bào)》2017年09期 　論文類型：期刊論文

【摘要】：利用X射線光譜儀、掃描電子顯微鏡以及顯微維氏硬度計(jì)對電沉積黃金樣品進(jìn)行了分析測試,發(fā)現(xiàn)不同電沉積樣品其維氏硬度值不同。將不同電沉積樣品的晶粒大小、織構(gòu)系數(shù)以及顯微維氏硬度值進(jìn)行了對比,發(fā)現(xiàn)當(dāng)電沉積黃金晶粒小到納米級時(shí),會出現(xiàn)反常Hall-Petch效應(yīng);顯微維氏硬度值高的樣品(111)晶面具有強(qiáng)的擇優(yōu)取向,硬度最高的電沉積黃金樣品可以達(dá)到117.0 HV0.2,其(111)晶面的織構(gòu)系數(shù)可以達(dá)到70.59%。且織構(gòu)系數(shù)高的樣品在掃描顯微鏡下觀察到表面平整度更高。因此,電沉積工藝中可以通過添加劑的使用,來控制晶粒的擇優(yōu)取向,從而得到硬度更高、表面平整度更好的樣品。
[Abstract]:By using X-ray spectrometer, scanning electron microscope and micro Vickers hardness meter, the results show that the Vickers hardness values of different electrodeposition samples are different. The texture coefficient and Vickers hardness are compared. It is found that anomalous Hall-Petch effect will occur when the electrodeposition gold grains are small to nanocrystalline, and the high Vickers hardness of the sample has a strong preferred orientation. The highest hardness of electrodeposition gold samples can reach 117.0 HV0.2, and the texture coefficient of the crystal plane can reach 70.59.The samples with high texture coefficient can be observed to have higher surface smoothness under scanning microscope. In the electrodeposition process, the preferred orientation of the grains can be controlled by the use of additives, thus the samples with higher hardness and better surface smoothness can be obtained.
【作者單位】： 中國地質(zhì)大學(xué)(武漢)珠寶學(xué)院;
【基金】：中國地質(zhì)大學(xué)(武漢)珠寶檢測技術(shù)創(chuàng)新中心開放基金(CJHIXM-S201615)
【分類號】：TQ153.4
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本文編號：1519191