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【正文】 三、項(xiàng)目特色及創(chuàng)新點(diǎn):傳統(tǒng)上國(guó)內(nèi)外常用電弧堆焊、電火花沉積或電刷鍍等模具修復(fù)方法,本項(xiàng)目采用研制的復(fù)合合金粉末系統(tǒng)配合等離子噴焊修復(fù)模具在國(guó)內(nèi)外尚屬首次,可以克服傳統(tǒng)方法的明顯不足。參考文獻(xiàn)1) 王文權(quán),宣兆志,殷世強(qiáng),孫大謙. 汽車齒輪軸等離子噴涂修復(fù). 汽車工藝與材料,2003,8:38-40.2) 王文權(quán),孫大謙,宣兆志. 合金元素對(duì)高鉻鑄鐵堆焊層耐沖蝕磨損性能的影響. 汽車工藝與材料,2003,3:14-16. 3) . Wang, . Sun, . Gong, . Xuan. Microstructure and Properties of Plasma sprayed nanoceramic thermal barrier coating. Aeronautical manufacturing technology, 2004, 9(253): 220224. 4) Daqian Sun, Wenquan Wang, Zhaozhi Xuan, Yeu Xu and Zhenfeng Zhou. Effect of alloying elements on microstructure and erosion resistance of FeCCr weld surfacing layer. J. Mater. Sci. Technol., 2003, 19(4): 351—356.5) Sun Daqian,Wang wenquan,Xuan Zhaozhi,Ren zhenan.  Effects of alloy elements on microstructures and crack resistance of FeCCr weld surfacing layer. China Welding, 2003, 11, 12(2): 9297. 6) Sun Daqian,Wang wenquan,Xuan zhaozhi,Gong wenbiao. Microstructural features and properties of plasma sprayed YPSZ/NiCrAlY thermal barrier coating (TBC). China Welding, 2004, 11, 13(2): 9196.7) W. Q. Wang, C. K. Sha, D. Q. Sun, . Microstructural feature, thermal shock resistance and isothermal oxidation resistance of nanostructured zirconia coating. Materials Science and Engineering A, 424 (2006)15.8) 宮文彪,白晶,劉威,孫大千,王文權(quán),摻雜納米CeO2對(duì)ZrO2Y2O3熱障涂層隔熱性能的影響,復(fù)合材料學(xué)報(bào),2009,26(1):97-101.二、項(xiàng)目研究?jī)?nèi)容:(1)對(duì)待修復(fù)或強(qiáng)化模具取樣分析、測(cè)試模具材料的化學(xué)成分、金相組織與力學(xué)性能;(2)研制相應(yīng)的復(fù)合粉末合金系統(tǒng),采用等離子噴焊方法制備修復(fù)層或強(qiáng)化層;(3)研究修復(fù)層的硬度、強(qiáng)度和抗熱疲勞壽命,與模具本體的性能比較,并據(jù)此調(diào)整、優(yōu)化合金成分,確定最佳的模具修復(fù)或強(qiáng)化合金系統(tǒng);(4)利用研制的新
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