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A thick Fe-based amorphous composite coating (1—5mm) was prepared in situ by tungsten inert gas (TIG) cladding method. The auxiliary cooling system was used to improve the solidification rate of molten alloy and decrease the dilution from the substrates. The microstructure of the composite coating was investigated by X-ray differaction, optical microscope and transmission electron microscope. In addition, the micro-hardness of the coating was also measured. The results show that the composite coating is composed of the amorphous phase and the nano-crystalline grains encapsulated by amorphous transition layer, whose content is more than 50 percent. The composite coatings have been found to have good bonding strength and high wear resistance, the maximum value of the micro-hardness is up to 1600HV0.3. The microstructure of the transition layer with good elastic-plastic properties leads to the higher impact resistance. At last, the relations between the microstructure and micro-hardness properties were discussed in detail, and the main reason for high hardness is the cooperation of the amorphous phase and nano-crystalline phase in the composite coatings.
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Keywords:
- amorphous /
- coating /
- cladding /
- microhardness
[1] Liu Y H, Wang G, Wang R J, Zhao D Q, Pan M X, Wang W H 2007 Science 315 1385
[2] Zhang Y, Wang W H, Greer A L 2006 Nat. Mater. 5 857
[3] Hofmann D C, Suh J Y, Wiest A, Duan G, Lind M L, Demetriou M D, Johnson W L 2008 Nature 451 1085
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[20] Wang Z Y, Yang Y S, Tong W H, Li H Q, Hu Z Q 2006 Acta Phys. Sin. 55 1953 (in Chinese) [王珍玉、 杨院生、 童文辉、 李会强、 胡壮麒 2006 55 1953]
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[22] Wang Y F, Li G, Wang C S, Xia Y L, Sandip B, Dong C 2004 Surf. Coat. Tech. 176 284
[23] Inal O T, Robino C V, Keller L, Yost F G, Karnowsky M M 1981 J. Mater. Sci. 16 3183
[24] Xiang X H, Liu X Y, Zhu H C 2002 J. Mater. Eng. 2 25
[25] Pan J G, Fan Z S, Sun D B, Yu H Y, Li H Q, Wang X D, Meng H M 2005 J. Mater. Eng. 9 53 (in Chinese) [潘继岗、 樊自拴、 孙冬柏、 俞宏英、 李辉勤、 王旭东、 孟惠民 2005 材料工程 9 53]
[26] Wang C L, Wu Y P, Zhang P 2005 China Surface Engineering 18 19 (in Chinese) [王翠玲、 吴玉萍、 张 萍 2005 中国表面工程 18 19]
[27] Guo J H, Lu C W, Ni X J, Wu J W, Lu Z C, Lian F Z 2006 China Surface Engineering 19 45 (in Chinese) [郭金花、 陆曹 卫、 倪晓俊、 吴嘉伟、 卢志超、 连法增 2006 中国表面工程 19 45] 〖28] Zhou Z, Wang L, Wang F C, Wang Q S, Ma Z, Liu Y B 2006 Doctoral Forum of China Beijing, October 19—21, 2006 (in Chinese) [周 正、王 鲁、王富耻、王全胜、马 壮、柳彦博 2006 全国博士生学术论坛 北京,2006年10月19—21日]
[28] Goyal R K, Tiwari A N, Negi Y S 2008 Mater. Sci. Eng. A 491 230
-
[1] Liu Y H, Wang G, Wang R J, Zhao D Q, Pan M X, Wang W H 2007 Science 315 1385
[2] Zhang Y, Wang W H, Greer A L 2006 Nat. Mater. 5 857
[3] Hofmann D C, Suh J Y, Wiest A, Duan G, Lind M L, Demetriou M D, Johnson W L 2008 Nature 451 1085
[4] Yang Q M, Xu Q M, Fang Y Z, Mo C J 2009 Acta Phys. Sin. 58 4072 (in Chinese) [杨全民、 许启明、 方允樟、 莫婵娟 2009 58 4072]
[5] Guo H, Yan P F, Wang Y B, Tan J, Zhang Z F, Sui M L, Ma E 2007 Nat. Mater. 6 735
[6] Liu L, Sun M, Zhan Q, Liu B, Qiu C L 2006 Acta Phys. Sin. 58 4072 (in Chinese) [柳 林、 孙 民、 谌 祺、 刘 兵、 邱春雷 2006 58 4072]
[7] Lu Z P, Liu C T, Thompson J R, Porter W D 2004 Phys. Rev. Lett. 92 245503
[8] Peng J, Wei H Q, Li X A, Zhang Z C 2009 Acta Phys. Sin. 58 4059 (in Chinese) [彭 建、 危洪清、 李乡安、 张志纯 2009 58 4059]
[9] Liu K X, Liu W D, Wang J T, Yan H H, Li X J, Huang Y J, Wei X S, Shen J 2008 Appl. Phys. Lett. 93 081918
[10] Ran L L, Qu S L, Guo Z Y 2010 Chin. Phys. B 19 034204
[11] Zhao H Y, Kan J D, Liu Q J, Liu Z Q 2005 Acta Phys. Sin. 54 1711 (in Chinese)[赵鹤云、 阚家德、 柳清菊、 刘佐权 2005 54 1711]
[12] Wu Y P, Lin P H, Xie G Z, Hu J H, Cao M 2006 Mater. Sci. Eng. A 430 34
[13] Cheng J B, Liang X B, Xu B S, Wu Y X 2009 J. Non-Cryst. Solids 355 1673
[14] Zhu Q J, Zou Z D, Qu S Y, Wang X H 2008 China Welding 17 23
[15] Cui C Y, Hu J B, Liu Y H, Gao K, Guo Z X 2008 Appl. Surf. Sci. 254 6779
[16] Basu A, Samant A N, Harimkar S P, Majumdar J D, Manna I, Dahotre N B 2008 Surf. Coat. Tech. 202 2623
[17] Brangand J, Swank W D, Meacham B E 2009 Metall. Mater. Trans. A 40A 1306
[18] Wu X L, Hong Y S 2001 Surf. Coat. Tech. 141 141
[19] Zhu Q J, Qu S Y, Wang X H, Zou Z D 2007 Appl. Surf. Sci. 253 7060
[20] Wang Z Y, Yang Y S, Tong W H, Li H Q, Hu Z Q 2006 Acta Phys. Sin. 55 1953 (in Chinese) [王珍玉、 杨院生、 童文辉、 李会强、 胡壮麒 2006 55 1953]
[21] Cheng F T, Lo K H, Man H C 2004 Mater. Sci. Eng. A 380 20
[22] Wang Y F, Li G, Wang C S, Xia Y L, Sandip B, Dong C 2004 Surf. Coat. Tech. 176 284
[23] Inal O T, Robino C V, Keller L, Yost F G, Karnowsky M M 1981 J. Mater. Sci. 16 3183
[24] Xiang X H, Liu X Y, Zhu H C 2002 J. Mater. Eng. 2 25
[25] Pan J G, Fan Z S, Sun D B, Yu H Y, Li H Q, Wang X D, Meng H M 2005 J. Mater. Eng. 9 53 (in Chinese) [潘继岗、 樊自拴、 孙冬柏、 俞宏英、 李辉勤、 王旭东、 孟惠民 2005 材料工程 9 53]
[26] Wang C L, Wu Y P, Zhang P 2005 China Surface Engineering 18 19 (in Chinese) [王翠玲、 吴玉萍、 张 萍 2005 中国表面工程 18 19]
[27] Guo J H, Lu C W, Ni X J, Wu J W, Lu Z C, Lian F Z 2006 China Surface Engineering 19 45 (in Chinese) [郭金花、 陆曹 卫、 倪晓俊、 吴嘉伟、 卢志超、 连法增 2006 中国表面工程 19 45] 〖28] Zhou Z, Wang L, Wang F C, Wang Q S, Ma Z, Liu Y B 2006 Doctoral Forum of China Beijing, October 19—21, 2006 (in Chinese) [周 正、王 鲁、王富耻、王全胜、马 壮、柳彦博 2006 全国博士生学术论坛 北京,2006年10月19—21日]
[28] Goyal R K, Tiwari A N, Negi Y S 2008 Mater. Sci. Eng. A 491 230
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