研究了焊后热处理(PWHT)保温时间的变化对新型高Cr铁素体耐热钢焊接接头焊缝的组织形态,焊接接头的拉伸性能以及沉淀相的分布、颗粒尺寸等的影响.结果表明,随着保温时间的延长,马氏体板条尺寸逐渐增加,位错密度降低,组织发生了再结晶;大部分的M23C6沉淀相位于晶界/亚晶界,且颗粒尺寸比晶内的大得多,并逐渐粗化长大,几乎观察不到MX相的变化;焊接接头的拉伸性能随保温时间的延长逐渐升高,但受组织回复和再结晶的影响,增长速率逐渐降低.
参考文献
| [1] | 高秋志,张旦天,刘家泳,刘永长,刘晨曦,严泽生.高Cr铁素体耐热钢连续冷却相变行为[J].材料热处理学报,2011(09):67-71. |
| [2] | Junchao An;Hongyang Jing;Guangchun Xiao;Lei Zhao;Lianyong Xu .Analysis of the Creep Behavior of P92 Steel Welded Joint[J].Journal of Materials Engineering and Performance,2011(8):1474-1480. |
| [3] | E. Isaac Samuel;B. K. Choudhary;K. Bhanu Sankara Rao .Influence of post-weld heat treatment on tensile properties of modified 9Cr-1Mo ferritic steel base metal[J].Materials Science and Technology: MST: A publication of the Institute of Metals,2007(8):992-999. |
| [4] | A. Al-Mazrouee;R. K. S. Raman;R.N. Ibrahim .Effect of post weld heat treatment on the oxide scaling of Cr-Mo steel weldments[J].Journal of Materials Processing Technology,2005(0):964-970. |
| [5] | 续伟霞,郑为为,石俊亮,孙祖庆,张艳.新型耐候钢连续冷却转变曲线的测定[J].材料热处理学报,2007(05):70-73. |
| [6] | 王申存,吴益文,华沂,李志成,张鸿.20MnCr5钢中马氏体回火的EBSD研究[J].材料热处理学报,2011(01):43-48. |
| [7] | Paul VT;Saroja S;Vijayalakshmi M .Microstructural stability of modified 9Cr-1Mo steel during long term exposures at elevated temperatures[J].Journal of Nuclear Materials: Materials Aspects of Fission and Fusion,2008(3):273-281. |
| [8] | Gao Q;Di X;Liu Y et al.Recovery and recrystallization in modified 9Cr-1Mo steel weldments after post-weld heat treatment[J].International Journal of Pressure Vessels and Piping,2012,93(07):69-74. |
| [9] | Kim SJ.;Okido M.;Moon KM. .The electrochemical study on mechanical and hydrogen embrittlement properties of HAZ part as a function of post-weld heat treatment in SMAW[J].Surface & Coatings Technology,2003(0):163-167. |
| [10] | K. Elangovan;V. Balasubramanian .Influences of post-weld heat treatment on tensile properties of friction stir-welded AA6061 aluminum alloy joints[J].Materials Characterization,2008(9):1168-1177. |
| [11] | 于志伟,许晓磊.5Cr21Mn9Ni4N耐热钢等温时效组织研究[J].材料热处理学报,2004(02):5-7. |
| [12] | Liu C;Liu Y;Zhang D et al.Effect of M3 C on the precipitation behavior of M23C6 phase during early stage of tempering in T91 ferritic steel[J].Steel Research International,2011,82(12):1362-1367. |
| [13] | 陶鹏,张弛,杨志刚,武田裕之.2.25Cr-1Mo-0.25V钢焊缝中第二相高温回火转变[J].金属学报,2009(01):51-57. |
| [14] | A. E. Korneev;I. A. Stepanova;E. I. Yaropolova .ANALYSIS OF THE PHASE COMPOSITION OF STEELS[J].Metal Science and Heat Treatment,2006(7/8):335-341. |
| [15] | Vitek J;Klueh R .Precipitation reactions during the heat treatment of ferritic steels[J].Metallurgical and Materials Transactions A:Physical Metallurgy and Materials Science,1983,14(05):1047-1055. |
| [16] | Taylor KA .Solubility products for titanium-,vanadium-,and niobium-carbide in ferrite[J].Scripta Metallurgica et Materialia,1995,32(01):7-12. |
| [17] | 雍歧龙.钢铁材料中的第二相[M].北京:冶金工业出版社,2006 |
| [18] | Todd J A;Li P .Microstructure-mechanical property relationships in isothermally transformed vanadium steels[J].Metallurgical and Materials Transactions A:Physical Metallurgy and Materials Science,1986,17(07):1191-1202. |
| [19] | Onoro J .Weld metal microstructure analysis of 9-12% Cr steels[J].International Journal of Pressure Vessels and Piping,2006,83(07):540-545. |
| [20] | Tamura M.;Sakasegawa H.;Kohyama A.;Esaka H.;Shinozuka K. .Effect of MX type particles on creep strength of ferritic steel[J].Journal of Nuclear Materials: Materials Aspects of Fission and Fusion,2003(2/3):288-293. |
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%