对443铁素体不锈钢与304奥氏体不锈钢焊接接头的显微组织以及其对显微硬度和冲击韧性的影响进行了研究.结果表明:焊缝显微组织由δ铁素体+奥氏体两相组成,焊缝不同区域δ铁素体形貌和含量存在明显差异;焊缝显微硬度随δ铁素体形貌和含量变化而变化,针状δ铁素体使焊缝显微硬度提高;443铁素体不锈钢母材及热影响区的冲击韧性较差,且随温度的降低,其冲击吸收功显著降低,室温时为韧性断裂,-20℃时发生脆性断裂.
参考文献
| [1] | John Lippold;Damian C;Kotecki J;陈剑虹,.不锈钢焊接冶金学及焊接性[M].北京:机械工业出版社,2008 |
| [2] | 杨文平,闫志峰,王文先,王志斌,张心保.443铁素体不锈钢随焊激冷焊接接头的组织性能[J].材料热处理学报,2012(10):96-100. |
| [3] | Abe, H.;Watanabe, Y. .Role of δ-ferrite in stress corrosion cracking retardation near fusion boundary of 316NG welds[J].Journal of Nuclear Materials: Materials Aspects of Fission and Fusion,2012(1/3):57-61. |
| [4] | Satyanarayana V V;Madhusudhan Reddy G;Mohandas T.Disimilar metal friction welding of austenitic-ferritic stainless steels[J].Journal of Materials Processing Technology,2005(160):128-137. |
| [5] | Hsieh Chih-Chun;LIN Dong-Yin;CHEN Ming-Che et al.Precipitation and strengthening behavior of massive δ-ferrite in dissimilar stainless steels during massive phase transformation[J].Rare Metal Materials and Engineering,2008,477:328-333. |
| [6] | 钟群鹏;赵子华.断口学[M].北京:高等教育出版社,2006 |
| [7] | O.H. Ibrahim;I.S. Ibrahim;T.A.F. Khalifa .Impact behavior of different stainless steel weldments at low temperatures[J].Engineering failure analysis,2010(5):1069-1076. |
| [8] | Das C R;Bhaduri A K;Srinivasan G et al.Selecion of filler wire for and effect of auto tempering on the mechanical properties of dissimilar metal joint between 403 and 304L(N) stainless steels[J].Journal of Materials Processing Technology,2009,209:1428-1435. |
| [9] | Cleiton C. Silva;Helio C. Miranda;Hosiberto B. de Sant'Ana;Jesualdo P. Farias .Austenitic and ferritic stainless steel dissimilar weld metal evaluation for the applications as-coating in the petroleum processing equipment[J].Materials & design,2013(May):1-8. |
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%