2O3陶瓷型殼;界面反應"/> 2O3型殼的黑色界面反應產(chǎn)物主要是α-Al2O3,并伴有FeCr2O4, (Fe, Ni)固溶體等多種成分相,界面反應層的厚度一般為5~6μm；界面反應后陶瓷型殼內(nèi)表面出現(xiàn)了TaO, NiO, HfO2等多種反應產(chǎn)物；降低表面粗糙度、控制型殼礦化劑中的Fe2O3雜質(zhì)含量,能夠有效抑制界面反應的產(chǎn)生。"/>

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Al2O3型殼與DD6單晶合金的界面反應
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北京航空材料研究院 先進高溫結(jié)構(gòu)材料重點實驗室,北京航空材料研究院 先進高溫結(jié)構(gòu)材料重點實驗室,北京航空材料研究院 先進高溫結(jié)構(gòu)材料重點實驗室,北京航空材料研究院 先進高溫結(jié)構(gòu)材料重點實驗室,北京航空材料研究院 先進高溫結(jié)構(gòu)材料重點實驗室,北京航空材料研究院 先進高溫結(jié)構(gòu)材料重點實驗室,北京航空材料研究院 先進高溫結(jié)構(gòu)材料重點實驗室

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Interface Reactions between DD6 Single Crystal Superalloy and Al2O3 Molds
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Science and Technology on Advanced High Temperature Structural Materials Laboratory,Beijing Institute of Aeronautical Materials,Science and Technology on Advanced High Temperature Structural Materials Laboratory,Beijing Institute of Aeronautical Materials,Science and Technology on Advanced High Temperature Structural Materials Laboratory,Beijing Institute of Aeronautical Materials,Science and Technology on Advanced High Temperature Structural Materials Laboratory,Beijing Institute of Aeronautical Materials,Science and Technology on Advanced High Temperature Structural Materials Laboratory,Beijing Institute of Aeronautical Materials,Science and Technology on Advanced High Temperature Structural Materials Laboratory,Beijing Institute of Aeronautical Materials,Science and Technology on Advanced High Temperature Structural Materials Laboratory,Beijing Institute of Aeronautical Materials

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    摘要:

    本文采用掃描電子顯微鏡、能譜分析、X射線衍射分析等手段研究了DD6單晶合金與陶瓷型殼的界面反應。實驗結(jié)果表明,DD6高溫合金與Al2O3型殼的黑色界面反應產(chǎn)物主要是α-Al2O3,并伴有FeCr2O4, (Fe, Ni)固溶體等多種成分相,界面反應層的厚度一般為5~6μm；界面反應后陶瓷型殼內(nèi)表面出現(xiàn)了TaO, NiO, HfO2等多種反應產(chǎn)物；降低表面粗糙度、控制型殼礦化劑中的Fe2O3雜質(zhì)含量,能夠有效抑制界面反應的產(chǎn)生。

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    The interface reactions between DD6 single crystal superalloy and ceramic shells were investigated by scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS) and X ray diffraction analysis (XRD) in this paper. The results show that the black reaction products were α-Al2O3, accompanied by FeCr2O4、taenite-(Fe, Ni) at the same time. The thickness of the reaction layer was about 5~6μm. The reaction products TaO, NiO, HfO2 were observed on the prime coat of the ceramic shell. The interface reactions can be inhibited by reducing the roughness of the facecoat and controlling the content of Fe2O3 in the mineralizer simultaneously.

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姚建省,李鑫,王麗麗,牛書鑫,劉曉光,唐定中,曹春曉. Al2O3型殼與DD6單晶合金的界面反應[J].稀有金屬材料與工程,2018,47(3):840~845.[Yao Jiansheng, Li Xin, Wang Lili, Niu Shuxin, Liu Xiaoguang, Tang Dingzhong, Cao Chunxiao. Interface Reactions between DD6 Single Crystal Superalloy and Al2O3 Molds[J]. Rare Metal Materials and Engineering,2018,47(3):840~845.]
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  • 收稿日期:2016-01-13
  • 最后修改日期:2016-02-01
  • 錄用日期:2016-03-30
  • 在線發(fā)布日期: 2018-04-11
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