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鉬鎢合金抗氧化涂層的制備及性能研究
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作者單位:

1.廈門理工學(xué)院 材料科學(xué)與工程學(xué)院福建省功能材料及應(yīng)用重點(diǎn)實(shí)驗(yàn)室;2.廈門虹鷺鎢鉬工業(yè)有限公司 制品研發(fā)部

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中圖分類號(hào):

TG178

基金項(xiàng)目:

福建省功能材料及應(yīng)用重點(diǎn)實(shí)驗(yàn)室開(kāi)放基金（fma2017201）；福建省高校創(chuàng)新團(tuán)隊(duì)培育計(jì)劃資助；福建省中青年教師教育科研項(xiàng)目（JAT170401，JAT170402）


Preparation and Properties of Anti-oxidation Coatings of Molybdenum-Tungsten Alloy
Author:
Affiliation:

Xiamen University of Technology

Fund Project:

The Open Fund of Fujian Provincial Key Laboratory of Functional Materials and Applications (fma2017201)；Program for Innovative Research Team in Science and Technology in Fujian Province University；The Education and Research Project of Fujian Province for Youths (JAT170401，JAT170402)

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    摘要:

    本研究采用原位反應(yīng)法對(duì)不同鎢含量的鉬鎢合金表面進(jìn)行滲氮-滲硅處理，制備得到高溫抗氧化涂層。采用掃描電子顯微鏡及X射線衍射分析了鉬鎢合金中鎢含量對(duì)涂層形貌和結(jié)構(gòu)的影響，并評(píng)價(jià)了涂層在1600℃的抗氧化性能，簡(jiǎn)要分析了涂層的抗氧化機(jī)理。研究表明，隨著鉬鎢合金中鎢含量的增加，涂層表面硅滲出量減少，說(shuō)明鎢含量的增加可以有效地減緩Si元素的向外擴(kuò)散；1600℃的高溫氧化實(shí)驗(yàn)證實(shí)了Mo-30%W表面涂層的抗氧化性能最為優(yōu)異，抗氧化時(shí)間長(zhǎng)達(dá)327 h。實(shí)驗(yàn)表明，鎢含量的增加在一定程度上提升了涂層的抗氧化性能。

    Abstract:

    High temperature oxidation resistant coatings were prepared by nitriding and siliconizing the surface of Mo-W alloys with different tungsten content by in-situ reaction method. The influence of W content on the morphology and microstructure of coating was analyzed by Scanning Electron Microscope and X ray diffraction. The oxidation resistance properties were also evaluated. In addition, the mechanism of anti-oxidant was researched. The results indicate that the amount of silicon seepage on the coating surface decreases as W content in Mo-W alloy increasing, which reveals that the increase of W content can slow down the outward diffusion of Si element effectively. Furthermore, the high temperature oxidation experiment at 1600℃ proves that the Mo-30%W surface coating has the best oxidation resistance, and the oxidation resistance time is up to 327 h. As a result, the increase of tungsten content improves the oxidation resistance of the coating to a certain extent.

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引用本文

楊益航,李保強(qiáng),劉文迪,古思勇,張厚安.鉬鎢合金抗氧化涂層的制備及性能研究[J].稀有金屬材料與工程,2020,49(6):2089~2094.[YANG Yihang, LI Baoqiang, LIU Wendi, GU Siyong, ZHANG houan. Preparation and Properties of Anti-oxidation Coatings of Molybdenum-Tungsten Alloy[J]. Rare Metal Materials and Engineering,2020,49(6):2089~2094.]
DOI：10.12442/j. issn.1002-185X.20190385

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  • 收稿日期:2019-05-07
  • 最后修改日期:2019-07-29
  • 錄用日期:2019-08-21
  • 在線發(fā)布日期: 2020-07-09
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