惠卫军,李阳,张永健,周超,董瀚

• 1:钢铁研究总院先进钢铁材料技术国家工程研究中心

摘要(Abstract)：

采用电化学充氢、热脱氢分析仪(TDS)及慢应变速率试验(SSRT)研究了预应变对一种Si-Mn系中碳TRIP钢的氢吸附及延迟断裂行为的影响。结果表明,具有多相组织的等温淬火(AT)试样在拉伸变形过程中,残留奥氏体在应变诱导下转变为马氏体,其转变量随着预应变量的增大而增加。具有回火马氏体组织的淬火回火(QT)试样和AT试样在充氢后的氢逸出曲线上均具有一个逸出峰,其峰值温度分别约为90℃和130℃,该峰值温度随预应变量的增大而升高。随着预应变量的增加,充氢QT样和AT样的氢含量逐渐增加,这导致氢致塑性损失增加,其中AT样的氢致塑性损失要明显高于QT样。这表明,预变形AT样的延迟断裂敏感性较高。

关键词(KeyWords)： 预应变;中碳TRIP钢;氢吸附;延迟断裂;残留奥氏体

Abstract:

Keywords:

基金项目(Foundation): 国家高技术研究发展计划项目(“863计划”)(2009AA033401)

作者(Author): 惠卫军,李阳,张永健,周超,董瀚

DOI: 10.13289/j.issn.1009-6264.2012.06.011

参考文献(References)：

• [1]Zaefferer S,Ohlert J,Bleck W.A study of microstructure,transformation mechanisms and correlation between microstructure and mechanical propertiesof a low alloyed TRIP steel[J].Acta Materilia,2004,52:2765-2778.
• [2]Berrahmoune M R,Berveiller S,Inal K,et al.Analysis of the martensitic transformation at various scales in TRIP steel[J].Materials Science andEngineering A,2004,378:304-307.
• [3]景财年,王作成,韩福涛.相变诱发塑性的影响因素研究进展[J].金属热处理,2005,30(2):26-30.JING Cai-nian,WANG Zuo-cheng,HAN Fu-tao.Research progress of the influencing factors on transformation induced plasticity[J].Heat Treatmentof Metals,2005,30(2):26-30.
• [4]李壮,吴迪.热处理工艺对低碳硅锰系TRIP钢力学性能的影响[J].材料热处理学报,2004,25(4):23-27.LI Zhuang,WU Di.The Effect of heat treatment technology on mechanical properties of the low carbon Si-Mn TRIP steel[J].Transactions ofMaterials and Heat Treatment,2004,25(4):23-27.
• [5]Basuki A,Aernoudt E.Effect of deformation in the intercritical area on the grain refinement of retained austenite of 0.4C TRIP steel[J].ScriptMaterialia,1999,40(9):1003-1008.
• [6]Sugimoto K,Tsunezawa M,Hojo T,Ikeda S.Ductility of 0.1-0.6C-1.5Si-1.5Mn ultra high-strength TRIP-aided sheet steels with bainitic ferrite matrix[J].ISIJ International,2004,44(9):1608-1614.
• [7]班丽丽,惠卫军,雍岐龙,等.热处理工艺对中碳TRIP钢微观组织及力学性能的影响[J].材料热处理学报,2008,29(5):56-61.BAN Li-li,HUI Wei-jun,YONG Qi-long,et al.Effect of heat treatment on the microstructure and mechanical properties in medium-carbon TRIP steel[J].Transactions of Materials and Heat Treatment,2008,29(5):56-61.
• [8]Hojo T,Sugimoto K,Mukai Y.Effects of aluminum on delayed fracture properties of ultra strength low alloy TRIP-aided steels[J].ISIJ International,2008,48(6):824-829.
• [9]北蓧智彦,宋星武,杉本公一.超高強度低合金TRIP鋼の水素脆性[J].鉄と鋼,2004,90(3):177-182.Hoji T,Song S,Sugimoto K.Hydrogen embrittlement of ultra high strength low alloy TRIP-aided steels[J].Tetsu-to-Hagane,2004,90(3):177-182.
• [10]北蓧智彦,杉本公一,向井陽一.超高強度低合金TRIP型ベイニティックフェライト鋼の水素脆化特性[J].鉄と鋼,2006,92(2):83-89.Hoji T,Sugimoto K,Mukai Y.Hydrogen embrittlement properties of ultra high-strength low alloy TRIP-aided steels with bainitic ferrite matrix[J].Tetsu-to-Hagane,2006,92(2):83-89.
• [11]Sugimoto K,Iida T,Sakaguchi J,Kashima T.Retained austenite characteristics and tensile properties in a TRIP type bainitic sheet[J].ISIJInternational,2000,40(9):902-908.
• [12]Sakuma Y,Matsumura O,Akisue O.Influence of C content and annealing temperature on microstructure and mechanical properties of 400℃transformed steel containing retained austenite[J].ISIJ International,1991,31(11):1348-1353.
• [13]褚武扬,氢损伤和滞后断裂[M].北京:冶金工业出版社,1988.
• [14]铃木信一,石井伸幸,土田豊.高張力鋼の拡散性水素の挙動に及ぼす塑性歪の影響[J].鉄と鋼,1994,80(11):855-859.Suzuki N,Ishii N,Tuchida Y.Diffusible hydrogen behavior in pre-strained high strength steel[J].Tetsu-to-Hagane,1994,80(11):855-859.
• [15]王昭洪,吴忍畊,崔忠圻.残留奥氏体对氢致断裂过程的影响[J].金属热处理学报,1990,11(2):48-53.WANG Zhao-hong,WU Ren-gen,Cui Zhong-qi.Effect of retained austenite on hydrogen-induced cracking(HIC)of 60Si2Mn steel[J].Transactionsof Metal Heat Treatment,1990,11(2):48-53.
• [16]山崎一正,水山弥一郎.超高強度冷延鋼板の遅れ破壊特性及ぼす残留オーステナイトと歪の影響[J].鉄と鋼,1997,83(11):754-759.Yamazaki K,Mizuyama Y.influence of retained austenite and strain on delayed fracture of ultra-high strength steel sheet[J].Tetsu-to-Hagane,1997,83(11):754-759.

文章评论(Comment)：