周雯,吴开明,李具中,邱金鳌

• 1:武汉科技大学国际钢铁研究院
• 2:武汉钢铁(集团)公司条材总厂

摘要(Abstract)：

对中温压力容器钢12Cr2Mo1R进行最小模拟焊后热处理,并应用阶梯冷却实验对其焊后回火脆性进行了评定和分析。结果表明,在-78~20℃内,试样冲击断口形貌均为韧窝特征,冲击功值高于54 J,中温压力容器钢12Cr2Mo1R焊后具有优良的抗回火脆性,这是因为其含P极低,同时含有较高的Mo在一定程度上阻碍了P在晶界的偏聚。

关键词(KeyWords)： 回火脆性;阶梯冷却;焊后热处理

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(50734004)

作者(Author): 周雯,吴开明,李具中,邱金鳌

DOI: 10.13289/j.issn.1009-6264.2015.s1.022

参考文献(References)：

• [1]Furtado H C,de Almeida L H,Le May I.Precipitation in 9Cr-1Mo steel after creep deformation[J].Materials Characterization,2007,58(1):72-77.
• [2]康煜平.金属固态相变及应用[M].北京:化学工业出版社,2007:200-201.
• [3]路永力,冯妟耀.Cr-Mo钢制高温加氢反应器回火脆性及控制[J].中国科技信息,2005(9):22-23.LU Yong-li,FENG Min-yao.Temper brittleness of high temperature hydrogenation reactor fabricated by Cr-Mo steel and its reactors[J].China Science And Technology Information,2005(9):22-23.
• [4]Lalam S H,Bhadeshia H K D H,Mackay D J C.Bruscato factor in temper embrittlement of welds[J].Science and Technology of Welding and Joining,2000,5(5):338-340.
• [5]Guttmann M.Equilibrium segregation in a ternary solution:A model for temper embrittlement[J].Surface Science,1975,53(1):213-227
• [6]孙晓龙,葛树涛.压力容器材料供货状态及设备制造过程的热处理[J].金属热处理,2008,33(7):101-104.SUN Xiao-long,GE Shu-tao.Delivery condition of pressure vessel materials and heat treatment in the process of equipment manufacture[J].Heat Treatment of Metals,2008,33(7):101-104.
• [7]Song S H,Faulkner R G,Flewitt P E J,et al.Temper embrittlement of a Cr Mo low-alloy steel evaluated by means of small punch testing[J].Materials Science and Engineering A,2000,281(1):75-81.
• [8]杨海林,罗义英,杨秀芹.Cr-Mo钢的回火脆性及其评定[J].宽厚板,2001,7(4):9-12.YANG Hai-ling,LUO Yi-ying,YANG Xiu-qin.Temper brittleness of Cr-Mo steel and its evaluation[J].Wide and Heavy Plate,2001,7(4):9-12.
• [9]杨宇峰,郭晓岚,刘金纯.Cr-Mo钢高温反应器的回火脆性及控制[J].当代化工,2005,34(1):64-66.YANG Yu-feng,GUO Xiao-lan,LIU Jin-chun.Temper brittleness of high temperature reactor fabricated by Cr-Mo steel and its reactors[J].Contemporary Chemical Industry,2005,34(1):64-66..
• [10]李莉,金国,郑卫,等.12Cr2Mo1和12Cr1Mo V钢的回火脆性研究[J].研究探索,2003(5):31-33.LI Li,JIN Guo,ZHENG Wei,et al.Comparative study on temper brittleness of 12Cr2Mo1 and 12Cr1Mo V steel[J].Research and Exploration,2003(5):31-33.
• [11]Xu T D,Song S H.A kinetic model of non-equilibrium grain-boundary segregation[J].Acta Metallurgica,1989,37(9):2499-2503.
• [12]Song S H,Zhang H,Wu J,et al.Dependence of ductile-to-brittle transition temperature on phosphorus grain boundary segregation of a 2.25Cr1Mo steel[J].Materials Science and Engineering A,2008,486(1/2):433-438.
• [13]Li Q F,Li L,Liu E B,et al.Temper embrittlement dynamics induced by non-equilibrium segregation of phosphorus in steel 12Cr1Mo V[J].Scripta Materialia,2005,53(3):309-313.
• [14]Aust K T,Hanneman G E,Niessen P,et al.Solute induced hardening near grain boundaries in zone refined metals[J].Acta Metallurgica,1968,16(3):291-302.
• [15]Song S H,Xu T D.Combined equilibrium and non-equilibrium segregation mechanism of temper embrittlement[J].Materials Science,1994,29(1):61-66.
• [16]付贵勤,朱苗勇.磷元素在钢中的晶界偏聚[J].鞍钢技术,2006,339(3):5-9.FU Gui-qin,ZHU Miao-yong.Phosphorus segregation on steel grain boundary[J].Angang Technology,2006,339(3):5-9.
• [17]Takayama S,Ogura T,Fu S C,et al.The calculation of transition temperature changes in steels due to temper embrittlement[J].Metallurgical and Materials Transactions A,1980,11(9):1513.

文章评论(Comment)：