采用CO2保护低合金钢焊丝焊接C4镍基合金/X60钢异种金属.并研究了焊缝的组织与耐蚀性.结果表明:靠近C4镍基合金熔合线附近出现含有奥氏体组织的未混合区,X60钢熔合区组织无明显未混合区出现;在CA镍基合金未混合区内Cr、Ni元素含量较高,从焊缝中央到X60钢熔合线,Cr元素含量明显减少,Ni元素含量增加;C4镍基合金熔合区和X60钢熔合区的耐蚀性优于焊缝区;形成腐蚀膜对基体保护作用也比焊缝区好.
参考文献
| [1] | Sudarsanam S B.The mechanism of acieular ferrite in weld de-posits[J].Current Opinion in Solid State and Materials Sci-ence,2004,8:267. |
| [2] | Dupont J N.Kusko C S.Technical note:martensite formation in austenitic/ferritic dissimlar alloy welds[J].Welding Journal,2007,86:51. |
| [3] | Ahmed H,E1Sawy J.Characterization of the GTAW fusion line phases for superferritic stainless steel weldments[J].Mater Pwces Tech,2001,118(2):128. |
| [4] | William H.Cubberly Metal handbook Ninth Edition[M].Unit-ed States of America:American Society for Meals,1980.145. |
| [5] | Maier P,Fanlkner R G.Effects of thermal history and micro-structure on phosphorus and manganese segregation at grain boundaries in C-Mn welds[J].Materials Characterization,2003,51:49. |
| [6] | Shamantha C R,Narayanan R lyer K J L,et al.Microstructural changes during welding and subsequent heat treatment of 18Ni (250-grade)maraging steel[J].Materials Science and Engi-neering A,2000,287:43. |
| [7] | Brown I H.The role of microsegregation in centreline cold cracking of high strength low alloy steel weldments[J].Scripta Mater,2006,54:489. |
| [8] | Pavlovsky J,Million B,Ciha K,et al.Carbon redistribution be-tween an austenitic cladding and a ferritic steel for pressure vessels of a nuclear reactor[J].Materials Science and Engi-neering A,1991,149:105. |
| [9] | Sedat K.The effect of the welding temperature on the weld-ability n diffusion welding of martensitic(AISI 420)stainless steel with ductie(spheroidal graphite-nodular)cast iron[J].Journal of Materials Processing Technology,2007,186:33. |
| [10] | [1O]UI-Hamid A,Hani M,Tawancy.Failure of weld joint between carbon steel pipe and 304 stainless steel ebows[J].Engineer-ing Failure Analyss,2005,12(2):181. |
| [11] | Osio A S,Liu S,David L.The effect of solidification on the for-mation and growth of inclusions in low carbon steel welds[J].Materials Science and Engineering A.1996,221:122. |
| [12] | Erich Folkhard.Welding Metallurgy of Stainless Steels[M].Publisher:Wien;New York:Springer-Verlag,1987.71. |
| [13] | 杨丽颖,柳伟.路民旭.氮元素对2Crl3不锈钢CO2腐蚀产物膜结构和电化学性能的影响[J].金属学报,2006,42(12):1279. |
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：
-
10%
-
20%
-
30%
-
40%
-
50%