Feasibility on Preparation of Fe-8B-Mo Amorphous Coatings by Electro-spark Deposition

WEI Xiang, CHEN Zhi-guo, ZHONG Jue, HUANG Qi-sheng, ZHANG Yi and ZHANG Yu-long

China Surface Engineering ›› 2016, Vol. 29 ›› Issue (5) : 16-23.

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China Surface Engineering ›› 2016, Vol. 29 ›› Issue (5) : 16-23. DOI: 10.11933/j.issn.1007-9289.2016.05.002

Feasibility on Preparation of Fe-8B-Mo Amorphous Coatings by Electro-spark Deposition

  • WEI Xiang, CHEN Zhi-guo, ZHONG Jue, HUANG Qi-sheng, ZHANG Yi and ZHANG Yu-long
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Abstract

To investigate the amorphous forming ability of the Fe-8B-Mo alloy, four types of the Fe-8B-Mo (x=13.62, 23.62, 33.62 and 43.62, w/%) alloy coatings were successfully prepared by electro-spark deposition. Phase composition of the coatings was characterized by X-ray diffraction (XRD) for exploring the feasibility of forming amorphous coatings. Moreover, scanning electron microscope (SEM) observation, mircohardness test, friction and wear test were conducted for further investigation of their microstructure and properties. XRD results show that four types of the Fe-8B-Mo coatings are all composed of amorphous phase, martensite phase and Fe2B phase. The 13.62% Mo coating consists mainly of Fe2B phase and martensite phase, whereas the others consist primarily of amorphous phase, furthermore, the amorphous phase decreases as the Mo increases. The coatings are dense, barely defective and metallurgically bonded with the substrate. The 23.62% Mo coating has a maximum peak microhardness of 1 138.1 HV0.05. It shows the minimum mean friction coefficient in the steady state and the minimum wear mass after abrasion of 2 h as evidence of its better friction and wear performance. The abrasion mechanism of four types of the Fe-8B-Mo coatings is both abrasive wear and fatigue wear.

Key words

electro-spark deposition(ESD);amorphous coating;microstructure;properties

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WEI Xiang, CHEN Zhi-guo, ZHONG Jue, HUANG Qi-sheng, ZHANG Yi and ZHANG Yu-long. Feasibility on Preparation of Fe-8B-Mo Amorphous Coatings by Electro-spark Deposition[J]. China Surface Engineering, 2016, 29(5): 16-23 https://doi.org/10.11933/j.issn.1007-9289.2016.05.002

References

[1] ECKERT J, DAS J, PAULY S, et al. Mechanical properties of bulk metallic glasses and composites[J]. Journal of Materials Research, 2007, 22(2):285-301.
[2] BAUMER R E, DEMKOWICZ M J. Radiation response of amorphous metal alloys:sub cascades, thermal spikes and superquenched zones[J]. Acta Materialia, 2015, 83(15):419-430.
[3] INOUE A, ZHANG T, TAKEUCHI A. Bulk amorphous alloys with high mechanical strength and good soft magnetic properties in Fe-TM-B (TM:IV-VⅢ group transition metal) system[J]. Applied Physics Letters, 1997, 71:464-466.
[4] 陈珊珊, 樊自拴, 孙冬柏, 等.气保焊堆焊方法制备铁基非晶合金涂层[J]. 中国表面工程, 2011, 24(3):78-82.CHEN S S, FAN Z S, SUN D B, et al. Iron based amorphous alloy coating prepared by CO2 welding[J]. China Surface Engineering, 2011, 24(3):78-82(in Chinese).
[5] 安宇龙, 赵晓晴, 周惠娣, 等. 大气等离子喷涂制备Fe基非晶涂层及微观结构表征[J]. 中国表面工程, 2013, 26(5):64-69.AN Y L, ZHAO X Q, ZHOU H D, et al. Preparation and microstructure characterization of atmosphere sprayed Fe-based amorphous coating[J]. China Surface Engineering, 2013, 26(5):64-69(in Chinese).
[6] 达则晓丽, 朱彦彦, 李铸国. 激光功率对激光熔覆Fe-Co-B-Si-Nb涂层组织与性能的影响[J]. 中国表面工程, 2012, 25(3):52-56.DAZE X L, ZHU Y Y, LI Z G. Effect of laser power on microstructure and properties of laser cladding Fe-Co-B-Si-Nb coatings[J]. China Surface Engineering, 2012, 25(3):52-56(in Chinese).
[7] BELOSTOKOV A G. Anomalies of the magnetostriction of amorphous Fe-B alloys at 4.2K[J]. Physics of Metal and Metallography, 1988, 66(4):816-819.
[8] LU Z P, LIU C T, THOMPSON J R, et al. Structural amorphous steels[J]. Physical Review Letters, 2004, 92(24):245-503.
[9] JOHNSON R N, SHELDON G L. Advances in the electrospark deposition coating process[J]. Journal of Vacuum Science & Technology A, 1986, 4(6):2740-2746.
[10] WEI X, CHEN Z G, ZHONG J, et al. Feasibility of preparing Mo2FeB2-based cermet coating by electrospark deposition on high speed steel[J]. Surface & Coatings Technology, 2016, 296:58-64.
[11] 聂英石, 李文, 李登科, 等.电火花沉积Fe48Cr16Mo15C17B4非晶合金涂层的微观组织和性能[J]. 材料研究学报, 2013, 27(10):75-79.NIE S Y, LI W, LI D K, et al. Microstructure and properties of Fe-based amorphous alloy coating deposited by electro-spark deposition process[J]. Chinese Journal of Materials Research, 2013, 27(10):75-79(in Chinese).
[12] LIU D Y, GAO W, LI Z W, et al. Electro-spark deposition of Fe-based amorphous alloy coatings[J]. Materials Letters, 2007, 61:165-167.
[13] 魏祥, 陈志国, 黄奇胜. Fe2B-Mo2FeB2基金属陶瓷的显微组织与性能[J]. 中国有色金属学报, 2015, 25(4):1012-1017.WEI X, CHEN Z G, HUANG Q S. Microstructure and properties of Fe2B-Mo2FeB2 based cermets[J]. The Chinese Journal of Nonferrous Metals, 2015, 25(4):1012-1017(in Chinese).
[14] 程江波, 梁秀兵, 徐滨士, 等. 铁基非晶纳米晶涂层组织及耐冲蚀性能的研究[J]. 稀有金属材料与工程, 2009, 38(12):2141-2145.CHENG J B, LIANG X B, XU B S, et al. Microstructure and erosion resistance of Fe-based amorphous/nanocrystalline coatings[J]. Rare Metal Materials and Engineering, 2009, 38(12):2141-2145(in Chinese).
[15] DEBOER F R, BOOM R, MATTENS W C M, et al. Cohesion in metals transition metal alloys[M]. Netherlands:Elsevier Science Publishing Company Inc, 1989:217.
[16] 王书亮. 部分铁基合金系相图的热力学数据库的建立及其在非晶态合金设计中的应用[D]. 厦门:厦门大学, 2009.WANG S L. Establishment of thermodynamic database for the phase diagram of some Fe based alloys and its application in the design of amorphous alloys[D]. Xiamen:Xiamen University, 2009(in Chinese).
[17] PARKANSKY N, BOXMAN R L, GOLDSMITH S. Development and application of pulsed-air-arc deposition[J]. Surface & Coatings Technology, 1993, 61:268-273.
[18] PANTELIS D I, PSYLLAKI P, A LEXOPOULOS N. Tribological behaviour of plasma-sprayed Al2O3 coatings under severe wear conditions[J]. Wear, 2000, 237:197-204.
[19] 刘瑞堂. 机械零件失效分析[M]. 哈尔滨:哈尔滨工业大学出版社, 2003:61-62.LIU R T. Failure analysis of mechanical component[M]. Harbin:Harbin Institute of Technology Press, 2003:61-62(in Chinese).
[20] 何爱奖, 王玉玮. 材料磨损与耐磨材料[M]. 沈阳:东北大学出版社, 2001:75.HE A J, WANG Y W. Materials wear and wear-resistant materials[M]. Shenyang:Northeastern University Press, 2001:75(in Chinese).
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