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Co-Cr-W系等離子弧堆焊合金層顯微結(jié)構(gòu)的研究
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TG456.2 TG455

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安徽省科技廳中韓合作項(xiàng)目(00250807)，中美國(guó)際合作項(xiàng)目(01088013)


The Research of the Microstructure of the Co-Cr-W Alloy Plasma Surfacing
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    摘要:

    用金相顯微鏡，X射線衍射(XRD)，掃描電鏡(SEM)，透射電鏡(TEM)和X射線能譜(EDS)對(duì)等離子弧堆焊Co—Cr—W系多元合金層進(jìn)行了研究，結(jié)果表明，合金層基體為具有(200)晶面擇優(yōu)取向的Co基固溶體，Co基固溶體中存在許多堆垛層錯(cuò)；與固溶體組成共晶體的碳化物主要為具有六方點(diǎn)陣并含有層片狀孿晶的(Cr,Fe)7C3。

    Abstract:

    The microstructure of Co-Cr-W alloy plasma surfacing has been investigated using metallurgical phase, X-ray diffraction, SEM and TEM. The results indicated that the alloy layer was composed of Co base solid solution with the preferred direction at (200) crystal plane and (Cr, Fe)7(C, B)3. The TEM research showed that there was a lot of stacking fault ribbons lying in Co-base solid solution. The result also showed that (Cr, Fe)7(C, B)3 was hexagonal lattice with lamellar and flake twin.

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侯清宇 高甲生. Co-Cr-W系等離子弧堆焊合金層顯微結(jié)構(gòu)的研究[J].稀有金屬材料與工程,2004,33(11):1199~1202.[Hou Qingyu, Gao Jiasheng. The Research of the Microstructure of the Co-Cr-W Alloy Plasma Surfacing[J]. Rare Metal Materials and Engineering,2004,33(11):1199~1202.]
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  • 最后修改日期:2003-03-14
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