不锈钢表面电镀锡银钎料的润湿特性

doi:10.11896/j.issn.1005-023X.2018.08.011

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Abstract Aiming at revealing the wetting characteristic of Sn-electroplated Ag brazing alloys on the surface of 304 stainless steel, wetting test furnace, imaging-type sintering point tester, scanning electron microscope (SEM), X-ray diffractometer (XRD), energy dispersive spectrometer (EDS) were applied to analyze the wetting behavior, dynamic spreading process, interfacial microstructure, phase composition and element distribution. And the chemical elements of the interface was analyzed by line scan. The results suggested that the improved wettability of the Sn-electroplated Ag brazing alloy on stainless steel surface is intrinsically caused by the prior spreading of the wetting precursor, which is mainly induced by the B₂O₃ in FB102 flux employed during wetting experiment. Cu₄₁Sn₁₁ compound phase, which appears at the interface of Sn-electroplated Ag brazing alloys and stainless steel, is perpendicular to the wetting interface and grow inward the brazing seam form a “column” shape. With the increase of Sn content, the wetting area of Sn-electroplated Ag brazing alloys exhibited an expanding trend on the surface of stainless steel. Compared with the traditional brazing filler metals, under the same Sn content, the wetting area of Sn-electroplated Ag brazing alloys increased about 8.1%—12.5%. When Sn content is 7.2 wt%, the wetting area of Sn-electroplated Ag brazing alloys reached the maximum value of about 481 mm². Our research also implied the diffusion-compound-type bonding form of the interface between Sn-electroplated Ag brazing alloys and 304 stainless steel.

Key words： 304 stainless steel Sn-electroplated Ag brazing alloys precursor effect wetting area energy spectrum analysis

Published: 11 May 2018

CLC number:

TG454

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	Articles by authors
	WANG Xingxing
	PENG Jin
	CUI Datian
	SUN Guoyuan
	HE Peng

Cite this article:

WANG Xingxing,PENG Jin,CUI Datian, et al. Wetting Characteristics of Tin-electroplated Silver Brazing Alloys on the Surface of 304 Stainless Steel[J]. Materials Reports, 2018, 32(8): 1263-1266.

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http://www.mater-rep.com/EN/10.11896/j.issn.1005-023X.2018.08.011 OR http://www.mater-rep.com/EN/Y2018/V32/I8/1263

1 Wang He,Xue Songbai,Liu Shuang. Effect of Ag on properties of Ag-contained filler metals[J].The Chinese Journal of Nonferrous Metals,2016,26(11):2340(in Chinese).
王禾,薛松柏,刘霜.银元素对含银钎料性能的影响[J].中国有色金属学报,2016,26(11):2340.
2 Long W M,Zhang G X,Zhang Q K. In situ synthesis of high strength Ag brazing filler metals during induction brazing process[J].Scripta Materialia,2016,110:41.
3 Maniani M E,Sabbar A. Partial and integral enthalpies of mixing in the liquid Ag-In-Sn-Zn quaternary alloys[J].Thermochimica Acta,2014,592:1.
4 Ma Chaoli,Xue Songbai,Wang Bo. Study on novel Ag-Cu-Zn-Sn brazing filler metal bearing Ga[J].Journal of Alloys and Compounds,2016,688:854.
5 Wierzbicki L J,Malec W,Stobrawa J,et al. Studies into new, environment-alloy friendly Ag-Cu-Zn-Sn brazing alloys of low silver content[J].Archives of Metallurgy and Materials,2011,56(1):147.
6 Watanabe T,Yanagisawa A,Sasaki T. Development of Ag based brazing filler metal with low melting point [J].Science and Technology of Welding and Joining,2011,16(6):502.
7 Lai Zhongmin,Xue Songbai,Han Xianpeng,et al. Study on microstructure and property of brazed joint of AgCuZn-X(Ga, Sn, In, Ni) brazing alloy[J].Rare Metal Materials and Engineering,2010,39(3):397.
8 Ma Jia,Long Weimin,He Peng,et al. Effect of gallium addition on microstructure and properties of Ag-Cu-Zn-Sn alloys[J].China Wel-ding (English Edition),2015,24(3):6.
9 Khorunov V F,Stefaniv B V,Maksymova S V. Effect of nickel and manganese on structure of Ag-Cu-Zn-Sn system alloys and strength of brazed joints[J].Paton Welding Journal,2014,4:22.
10 Wang Xingxing,Tan Qunyan,Xue Peng,et al. Phase composition and formation mechanism of diffusion transition zone for silver-based brazing alloys with tin coatings[J].Materials Review B:Research Papers,2017,31(4):66(in Chinese).
王星星,谭群燕,薛鹏,等. 镀锡银钎料扩散过渡区的物相和形成机制[J]. 材料导报:研究篇,2017,31(4):66.
11 Edmund B W,Gary S G,David R H. Precursor film controlled wetting of Pb on Cu[J].Physical Review Letters,2003,91:6102.
12 Xian A P. Precursor film of tin-based active solder wetting on cera-mics[J].Journal of Materials Science,1993,28:1019.
13 Ma Guangcai,Li Wen,Li Hong,et al. Wetting behavior and interfacial characteristics of In-Sn alloy on amorphous and crystalline Cu46Zr45Al7Gd2 substrates[J].Acta Metallurgica Sinica,2006,42(2):201(in Chinese).
马广才,李文,李宏,等.In-Sn合金熔体在非晶和晶态Cu46Zr45Al7Gd2合金上的润湿性及界面特性[J].金属学报,2006,42(2):201.
14 Li M G,Sun D Q,Qiu X M,et al. Effect of tin on melting temperature and microstructure of Ag-Cu-Zn-Sn filler metals[J].Materials Science and Technology(United Kingdom),2005,21(11):1318.
15 Du Nan,Wang Shuaixing,Zhao Qing,et al. Effects of boric acid on microstructure and corrosion resistance of boric/sulfuric acid anodic film on 7050 aluminum alloy[J].Transactions of Nonferrous Metals Society of China,2012,22(7):1655.