欢迎登录材料期刊网

材料期刊网

高级检索

用SEM和XRD观察和分析了铝含量和合金化时间不同的热镀锌合金化(GA)镀层的表面形貌和组织,用双杯突测量了GA镀层的抗粉化量.结果表明,锌液中铝含量小于0.16 mass%的热镀锌镀层合金化时,镀层表面的Ra值小于1.0 μm,且镀层的粉化量小于30 mg/m2,满足汽车板的表面质量要求;此后随着锌液中铝含量的增加,GA镀层的粉化量迅速增加,说明GA镀层的抗粉化性能除与镀层中的铁含量有关外,还与镀层表面的粗糙度有关.锌液中铝含量为0.22 mass%热镀锌镀层合金化时,由于Fe2 Al5 Znx抑制层的抑制作用,镀层中的δ1k-相出现局部增多的现象,从而恶化了GA镀层的抗粉化性能.

参考文献

[1] 袁训华,张启富,江社明.热镀锌合金化工艺对镀层表面摩擦特性的影响[J].材料热处理学报,2011(06):132-137.
[2] Sohei lWAMOTO;Shojiro OCHIAI;Hiroshi OKUDA .Analysis of Group-buckling and -debonding Behaviors of Galvannealed Coating Layer on Steel Substrates under Applied Tensile Strain[J].ISIJ International,2009(1):139-145.
[3] Shojiro OCHIAI;Sohei IWAMOTO;Toyomitsu NAKAMURA;Hiroshi OKUDA .Crack Spacing Distribution in Coating Layer of Galvannealed Steel under Applied Tensile Strain[J].ISIJ International,2007(3):458-465.
[4] Yoshinari NUNOMURA;Takayuki TAKASUGI .Plastic Deformation and Fracture Behavior of Galvannealed Coating[J].ISIJ International,2003(3):454-460.
[5] 袁训华,刘昕,陈斌锴,江社明,张启富.合金化镀层拉伸过程中裂纹产生及扩展的原位观察[J].金属热处理,2010(10):11-15.
[6] Iwamoto S;Ochiai S;Okuda H.Finite element analysis of interfacial de-bonding of the Fe-Zn intermetallic coating layer on steel substrate[A].Osaka,Japan,2007:236-240.
[7] Takasugi T;Machida J.Plastic deformation and fracture behavior of galvannealed coating under compressive stress circumstance[A].Osaka,Japan,2007:230-235.
[8] Luis G Garza;Chester J Van Tyne.The effect of ξ-phase on the frictional behavior of galvannealed interstitial free sheet steels[A].Osaka,Japan,2007:248-253.
[9] Rangarajan V;Jagannathan V;Raghavan K S .Influence of strain state on powdering of galvannealed sheet steel[J].Transaction Journal of Material and Manufacture,1996,105:68-75.
[10] Rangarajan V .Galvanneal powdering in draw-beads[J].Transaction Journal of Material and Manufacture,1997,106:182-192.
[11] Zhong W;Ng H F;Ichikawa M.Effect of coating characteristics on powdering performance of galvanneal coatings[A].Makuhari.Chiba,Japan,1998:603-607.
[12] Shi M F;Smith G;Moore M.Galvannealed coating optimized for coating adhesion through dies[A].Detroit,Michigan,USA,1990:387-398.
[13] Urai M;Arimura M;Sakai H et al.Effects of galvanizing and galvannealing conditions on powdering characteristics of galvannealed steel sheet[J].Kobelco Technology Review,1996,19:27-30.
[14] Lee KK;Lee IH;Lee CR;Ahn HK .In-situ observation in a scanning electron microscope on the exfoliation behavior of galvannealed Zn-Fe coating layers[J].Surface & Coatings Technology,2007(14):6261-6266.
[15] Moon-Hi HONG .Correlation between the Microstructure of Galvannealed Coatings and the Defoliation during Press Forming[J].ISIJ International,2005(6):896-902.
[16] 张启富;刘邦津;黄建中.现代钢带连续热镀锌[M].北京:冶金工业出版社,2007
[17] 张启富,袁训华,江社明,俞钢强.热镀锌合金化镀层相结构对摩擦特性与粉化量的影响[J].金属热处理,2012(06):108-112.
上一张 下一张
上一张 下一张
计量
  • 下载量()
  • 访问量()
文章评分
  • 您的评分:
  • 1
    0%
  • 2
    0%
  • 3
    0%
  • 4
    0%
  • 5
    0%