梁军,杜晋峰,李太江

• 1:神华国华(北京)电力研究院有限公司
• 2:西安热工研究院有限公司

摘要(Abstract)：

研究了740℃热处理P92钢焊接接头时效处理前后的组织及力学性能。结果表明,P92钢焊接接头740℃焊后热处理部分组织发生回复,有少量沉淀相析出;650℃时效处理后焊缝组织以等轴亚晶为主,析出的M23C6相有所长大,同时有不规则形状的Laves相析出。650℃时效处理降低了焊接接头的硬度和冲击功,冲击韧性有所降低,断口形貌为准解离;焊接接头室温拉伸性能随时效时间延长而降低,其高温拉伸性能有所改善;740℃热处理P92钢焊接接头稳态蠕变速率随应力的提高显著增加,160 MPa条件下稳态蠕变速率是991.5×10-5%/h。

关键词(KeyWords)： P92钢;M23C6相;时效处理;Laves相;蠕变

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 梁军,杜晋峰,李太江

参考文献(References)：

• [1]唐飞,董斌,赵敏.超超临界机组在我国的发展和应用[J].电力建设,2010,31(1):80-82.TANG Fei,DONG Bin,ZHAO Min.USC unit development and application in China[J].Electric Power Construction,2010,31(1):80-82.
• [2]梁军.超(超)临界机组金属材料应用技术探讨[J].神华科技,2009,7(5):53-56.LIANG Jun.Study of the application technology of the metal materials of ultra supercritical unit[J].Shen Hua Science and Technology,2009,7(5):53-56.
• [3]刘福广,李太江,梁军,等.高温时效对P92钢焊接接头显微组织和力学性能的影响[J].中国电机工程学报,2011,31(14):121-126.LIU Fu-guang,LI Tai-jiang,LIANG Jun,et al.Effect of thermal aging on microstructure and mechanical properties of P92 Steel weld joints[J].Proceedings of the Chinese Society for Electrical Engineering,2011,31(14):121-126.
• [4]Ennies P J,Zielinska lipiec A,Czyrska Filemonowicz A.Influence of heat treatmenton microstructural pramaters and mechanical properties of P92 steel[J].Materials Science and Technology,2000,16(10):1226-1232.
• [5]刘福广,李太江,王彩侠,等.焊后热处理温度对P92钢焊缝显微组织和力学性能的影响[J].动力工程学报,2011,31(10):803-808.LIU Fu-guang,LI Tai-jiang,WANG Cai-xia,et al.Effect of postweld heat treatment temperature on microstructure and mechanical properties of P92weld metal[J].Power Engineering,2011,31(10):803-808.
• [6]石如星,刘正东.P92耐热钢δ-铁素体内的析出相[J].材料热处理学报,2011,32(11):64-67.SHI Ru-xing,LIU Zheng-dong.Precipitated phase inδ-ferrite of P92 heat-resistant steel[J].Transactions of Materials and Heat Treatment,2011,32(11):64-67.
• [7]王学,潘乾刚,陈方玉,等.P92钢高温蠕变损伤分析[J].材料热处理学报,2011,31(2):64-69.WANG Xue,PAN Qian-gang,CHEN Fang-yu,et al.Analysis of creep damage at elevated temperature in A P92 steel[J]Transactions of Materials and Heat Treatment,2011,31(2):64-69.
• [8]彭志方,蔡黎胜彭芳芳,等.P92钢625℃持久性能分段特征与各段中M23C6及Laves相相参数的定量变化研究[J].金属学报,2010,46(4):429-434.PENG Zhi-fang,CAI Li-sheng,PENG Fang-fang,et al.Study on the multi-segment feature of 625℃creep-rupture property and the quatitative change of phase parameters of M23C6and Laves phases in each segment of P92 steel[J].Acta Metallurgica Sinica,2010,46(4):429-434.
• [9]杜晋峰,梁军,赵慧传,等.回火处理和时效处理对SA335 P92钢焊接接头力学性能的影响[J].金属热处理,2012,37(9):83-87.DU Jin-feng,LIANG Jun,ZHAO Hui-chuan,et al.Effect of tempering and aging on mechanical properties of SA355 P92 steel weld joint[J].Heat Treatment of Metals,2012,37(9):83-87.
• [10]张红军,周荣灿,范长信.Laves相对P92钢冲击韧性影响的试验研究[J].动力工程学报,2012,32(1):84-88.ZHANG Hong-jun,ZHOU Rong-can,FAN Chang-xin,et al.Influence of Laves Phase on Impact Toughness of P92 Steel[J].Power Engineering,2012,32(1):84-88.
• [11]姜运建,张文建,李文彬.Laves相对P92钢焊接接头蠕变的影响[J].河北电力技术,2009,28(1):1-3.JIANG Yun-jian,ZHANG Wen-jian,LI Wen-bin.Effects of Laves phase on creep of P92 steel welding joint[J].HeBei Electric Power,2009,28(1):1-3.
• [12]李文彬,姜运建,冯砚厅,等.焊后热处理对P92钢焊缝冲击性能的影响[J].金属热处理,2011,36(7):71-73.LI Wen-bin,JIANG Yun-jian,FENG Yan-ting,et al.Influence of post-welding heat treatment on impact property of P92 steel welding seam[J].Heat Treatment of Metals,2011,36(7):71-73.
• [13]刘志良,殷凤仕,薛冰,等.P92钢在650℃长期时效过程中的组织演化[J].热加工工艺,2010,39(22):144-145.LIU Zhi-liang,YIN Feng-shi,XUE Bin,et al.Microstructure evolution of P92 steel aging at 650℃for long time[J].Hot Working Technology,2010,39(22):144-145.
• [14]张红军,周荣灿,唐立英,等.P92钢650℃时效的组织性能研究[J].中国电机工程学报,2009,29(S1):174-177.ZHANG Hong-jun,ZHOU Rong-can,TANG Li-ying,et al.Study on microstructure and mechanical properties of P92 steels aged at 650℃[J].Proceedings of the Chinese Society for Electrical Engineering,2009,29(S1):174-177.
• [15]尚丽娟,王晓亮,张特,等.热处理工艺对403Nb钢组织与蠕变性能的影响[J].材料热处理学报,2011,32(3):85-89.SHANG Li-juan,WANG Xiao-liang,ZHANG Te,et al.Effect of heat treatment process on microstructure and creep properties of 403Nb steel[J].Transactions of Materials and Heat Treatment,2011,32(3):85-89.
• [16]Bumjoon K,Chanseo J,Byeongsoo L.Creep behavior and microstructural damage of martensitic P92 steel weldment[J].Materials Science and Engineering A,2008,483-484:544-546.

文章评论(Comment)：