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鈦合金表面激光熔覆鈷基復(fù)合涂層的組織和性能
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國家自然科學(xué)基金(50704009)


Microstructure and Properties of Co-Based Alloy
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國家自然科學(xué)基金資助項(xiàng)目(50771042)；河南省基礎(chǔ)與前沿技術(shù)研究計(jì)劃資助項(xiàng)目(092300410064)；河南省高?？萍紕?chuàng)新人才支持計(jì)劃資助項(xiàng)目(2009HASTIT023)；河南省重點(diǎn)攻關(guān)項(xiàng)目(092102210012)

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    摘要:

    利用橫流CO2激光器在鈦合金表面制備出原位自生TiB體系陶瓷顆粒增強(qiáng)Co基復(fù)合材料涂層，以改善常規(guī)材料表面綜合使用性能。采用XRD、SEM、EPMA等手段對復(fù)合涂層進(jìn)行研究。結(jié)果表明：涂層中原位合成的TiB2和TiB陶瓷相均勻分布在γ-Co基合金涂層中。涂層內(nèi)枝晶組織細(xì)小均勻，枝晶內(nèi)和枝晶間存在明顯的組織和成分差異。涂層顯微硬度比基體顯著提高，約為基體的3倍，同時(shí)耐磨性也得到顯著改善

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    In-situ synthesized TiB system ceramic particle reinforced Co-based composite coating was prepared on titanium alloy surface by transverse flow CO2 laser to improve the surface service performance of materials. The composite coating was studied by XRD, SEM and EPMA. Results show that in-situ synthesized TiB2 and TiB major ceramic phases are dispersed homogeneously in the γ-Co based alloy coating; they are very thin and uniform; there is obvious difference between the dendrites and the intergranular on the microstructure and composition. The microhardness of the coating is increased prominently, whose average value is about three times higher than that of the titanium alloy substrate. Wear resistance of the composite coating is significant improved

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馬海波,張維平.鈦合金表面激光熔覆鈷基復(fù)合涂層的組織和性能[J].稀有金屬材料與工程,2010,39(12):2189~2192.[Ma Haibo, Zhang Weiping. Microstructure and Properties of Co-Based Alloy[J]. Rare Metal Materials and Engineering,2010,39(12):2189~2192.]
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  • 收稿日期:2009-12-04
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