江苏科技大学学报（自然科学版）
江囌科技大學學報（自然科學版）
강소과기대학학보（자연과학판）
Journal of Jiangsu University of Science and Technology (Natural Science Edition)
2015年
4期
329-333
,共5页
不锈钢%核电设备%焊接工艺%力学性能
不鏽鋼%覈電設備%銲接工藝%力學性能
불수강%핵전설비%한접공예%역학성능
stainless steel%nuclear power equipment%welding process%mechanical property
采用国产核I级ER308L焊丝，依据法国RCC-M标准测试了该焊丝熔敷金属的化学成分和力学性能；研究了采用该焊丝TIG焊焊接00Cr18Ni9不锈钢接头成分、力学性能，并与采用国外核I级ER308L焊丝、国内普通ER308L焊丝的焊接接头进行对比分析；进一步研究了焊接电流对00Cr18Ni9不锈钢焊接接头力学性能的影响，优化国产核I级ER308L焊丝的TIG焊接工艺参数。结果表明：国产核I级ER308L氩弧焊丝熔敷金属的成分、铁素体含量、抗拉强度、屈服强度和冲击功均符合RCC-M标准要求；相同焊接工艺条件下，国产核 I 级 ER308L 氩弧焊丝焊接接头拉伸性能优于国外核 I 级ER308L焊丝和国内普通ER308L焊丝；在焊缝、熔合线及熔合线﹢2 mm三处的冲击功都比国外核I级焊丝要高；国产核Ⅰ级ER308L氩弧焊丝在120 A的焊接电流下所得接头的综合力学性能最佳，且焊缝中铁素体含量较为合适。
採用國產覈I級ER308L銲絲，依據法國RCC-M標準測試瞭該銲絲鎔敷金屬的化學成分和力學性能；研究瞭採用該銲絲TIG銲銲接00Cr18Ni9不鏽鋼接頭成分、力學性能，併與採用國外覈I級ER308L銲絲、國內普通ER308L銲絲的銲接接頭進行對比分析；進一步研究瞭銲接電流對00Cr18Ni9不鏽鋼銲接接頭力學性能的影響，優化國產覈I級ER308L銲絲的TIG銲接工藝參數。結果錶明：國產覈I級ER308L氬弧銲絲鎔敷金屬的成分、鐵素體含量、抗拉彊度、屈服彊度和遲擊功均符閤RCC-M標準要求；相同銲接工藝條件下，國產覈 I 級 ER308L 氬弧銲絲銲接接頭拉伸性能優于國外覈 I 級ER308L銲絲和國內普通ER308L銲絲；在銲縫、鎔閤線及鎔閤線﹢2 mm三處的遲擊功都比國外覈I級銲絲要高；國產覈Ⅰ級ER308L氬弧銲絲在120 A的銲接電流下所得接頭的綜閤力學性能最佳，且銲縫中鐵素體含量較為閤適。
채용국산핵I급ER308L한사，의거법국RCC-M표준측시료해한사용부금속적화학성분화역학성능；연구료채용해한사TIG한한접00Cr18Ni9불수강접두성분、역학성능，병여채용국외핵I급ER308L한사、국내보통ER308L한사적한접접두진행대비분석；진일보연구료한접전류대00Cr18Ni9불수강한접접두역학성능적영향，우화국산핵I급ER308L한사적TIG한접공예삼수。결과표명：국산핵I급ER308L아호한사용부금속적성분、철소체함량、항랍강도、굴복강도화충격공균부합RCC-M표준요구；상동한접공예조건하，국산핵 I 급 ER308L 아호한사한접접두랍신성능우우국외핵 I 급ER308L한사화국내보통ER308L한사；재한봉、용합선급용합선﹢2 mm삼처적충격공도비국외핵I급한사요고；국산핵Ⅰ급ER308L아호한사재120 A적한접전류하소득접두적종합역학성능최가，차한봉중철소체함량교위합괄。
In this paper,the domestic nuclear grade I ER308L welding wire designed by Shanghai Atlantic Welding Materials Co. ,Ltd was adopted. The composition and mechanical properties of this welding wire was studied according to French RCC-M standard. Then the composition and performance of TIG joint of 00Cr18Ni9 stainless steel with domestic nuclear grade I ER308 L welding wire were compared with those of imported nuclear grade I ER308L and common ER308L. Futhermore,the influence of welding current on joint performance of 00 Cr18 Ni9 steel was studied to optimize the welding parameters of domestic nuclear grade I ER308 L welding wire. Results showed that the composition,content of ferrite,tensile strength and impact energy of domestic nu-clear grade I ER308L welding wire met the RCC-M standard. Under united welding process parameters,the tensile strength of welded joint with domestic nuclear grade I ER308 L welding wire was better than that of impor-ted nuclear grade I ER308L and common ER308L. The impact energy in welding center,fusion line and fusion line﹢2mm was higher than that of imported nuclear grade I ER308L. The performance of welded joint under welding current 120A was the best,and the ferrite content in the joint was appropriate.
