采用X射线衍射、扫描电镜和透射电镜等研究了新型铁素体叶片钢在620℃长期时效过程中，M23C6碳化物和MX碳氮化物的析出行为。结果表明：620℃、2000h时效下，M23C6主要在时效过程中析出，且时效初期析出较快，而后缓慢析出，Nb(CN)相主要在热处理回火和时效初期析出；M23C6、Nb(CN)第二相620℃×2000h的热稳定性较好。
Precipitation behavior of M23C6 carbides and MX carbonitrides were investigated by X-ray diffraction and scanning electron microscopy and transmission electron microscopy in new ferrite-blade-steels during long term aging at 620℃. The results show that M23C6 are mainly precipitated during aging process with rapid rate of desorption in initial aging step and then slow at 620℃ aging for 2000h. Nb(CN) mainly are precipitated during tempering and initial aging process.Thermal stability of M23C6 and Nb(CN) are good at 620℃ aging for 2000h.
参考文献
| [1] | |
| [2] | .Eerri,E.Evangelists,S.Spigarelli,andP.Bianchi:Mater.Sci.Eng.1998,Vol.A245,p.258.[2].F.Abe:4thInt.Conf.onRecrystallizationandRelated Phenomena,The Japan Institute of Metal ,Sendai,1999,p.289.[3].T.Horiuchi,M.Igarashi,and F.Abe:Iron Steel Inst Jpn.Int.,2002,Vol.42,Suppl.,p.S67.[4].P.J.Ennis,A.Zielinska-Lipec,O.Wachter,andA.Czyrska-FileMonowicz:Acta Mater.,1997.Vol.12,p.4901.[5].Masaki Taneike ,Kota Sawada ,and Fujio Abe.Effect of Carbon Concentration on precipitation Behavior of M23C6 Carbides and MX Carbonitrides in Martensitic 9Cr Steel during Heat Treatment [J].Metallurgical and Materials Transactionsa Volume 35A ,April2004.[6]R.L.Klueh,N.Hashimoto,P.J.Maziasz,et.al. Development of new nano-particle strengthened martensitic steels[J].Scriptamater,2005,53(3):275-280[7] 宁保群.T91铁素体耐热钢相变过程及强化工艺[D].天津:天津大学材料科学与工程学院博士学位论文,2007,4.[8] 太田定雄.铁素体系耐热钢[M].北京:冶金工业出版社.2003.[9] 陆金生.钢和合金中常见相X-射线鉴定手册[M].北京钢铁研究总院.1996:36.[10] Kouichi MARUYAMA,Kota SAWADA,Jun-ichi KOIKE. Strengthening Mechanisms of Creep Resistant Tempered Martensitic Steel[J].ISIJ International, 2001, 41(6):641-653.[11] Emad EL-KASHIF, Kentaro ASAKURA,Toshihiko KOSEKI et al. Effects of Boron, Niobium and Titanium on Grain Growth in Ultra High Purity 18% Cr Ferritic Stainless Steel [J]. ISIJ International, 2004, 44 ( 9): 1568-1575 .[12] 曹仁焕.10Cr9MoVNb钢的组织和性能[J].特殊钢,1995,16(3). |
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%