利用RD-2型高温持久试验机、高分辨透射电子显微镜和能谱仪研究了国产S30432耐热钢在供货态及不同温度、应力条件下持久断裂后的第二相,尤其是Z相的析出行为及影响因素.结果表明:供货态S30432钢中只存在MX相;在650℃、170 MPa、10 712 h持久条件下析出了M23 C6碳化物和富铜相;在700℃、150MPa、937 h条件下,不仅析出了M23 C6碳化物和富铜相,还出现了Z相及包含MX相和Z相的颗粒;在700℃、150 MPa、1 944 h条件下Z相粗化缓慢,在700℃、100MPa、11 832 h条件下Z相粗化明显;高温和应力均会加速Z相的析出.
参考文献
| [1] | 杨岩,程世长,杨钢.Super304H锅炉钢的开发和研究现状[J].特殊钢,2002(01):27-29. |
| [2] | 迟成宇,董建新,刘文庆,谢锡善.3DAP研究Super304H耐热不锈钢中富Cu相的析出行为[J].金属学报,2010(09):1141-1146. |
| [3] | ZHANG Y;ZHU L;QI A et al.Microstructural evolution and the effect on mechanical properties of S30432 heat-resistant steel during aging at 650 ℃[J].ISIJ International,2010,50(04):596-600. |
| [4] | Jiang, J.;Zhu, L..Strengthening mechanisms of precipitates in S30432 heat-resistant steel during short-term aging[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2012:170-176. |
| [5] | Cheng-yu Chi,Hong-yao Yu,Jian-xin Dong,Wen-qing Liu,Shi-chang Cheng,Zheng-dong Liu,Xi-shan Xie.The precipitation strengthening behavior of Cu-rich phase in Nb contained advanced Fe-Cr-Ni type austenitic heat resistant steel for USC power plant application[J].自然科学进展（英文版）,2012(03):175-185. |
| [6] | 张忠文,李新梅,邹勇,杜宝帅.650℃时效不同时间后Super304H钢的显微组织[J].机械工程材料,2011(11):5-8,15. |
| [7] | 张忠文,李新梅,杜宝帅,邹勇,魏玉忠.Super304H钢700℃时效后组织和韧性的变化[J].机械工程材料,2012(10):12-14,46. |
| [8] | 赵林,董显平,孙锋,张澜庭,单爱党,刘鸿国.Super304H超超临界锅炉过热器管长期服役后的显微组织及力学性能[J].机械工程材料,2013(07):28-32,42. |
| [9] | L. H. Zhu;Y. J. Zhang;Q. J. Wang;S. Q. Xu .Microstructural Evolution and Change in Hardness of S30432 Heat-resistant Steel during Creep at 650℃[J].Steel Research International,2010(4):315-319. |
| [10] | JACK D H;JACK K H .Structure of Z-phase[J].J IronSteel Inst,1972,210(10):790-792. |
| [11] | STRANG A;VODAREK V .Z phase formation in martensitic 12CrMoVNb steel[J].Materials Science and Technology,1996,12(07):552-556. |
| [12] | Danielsen, HK;Hald, J .On the nucleation and dissolution process of Z-phase Cr(V,Nb)N in martensitic 12%Cr steels[J].Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing,2009(1/2):169-177. |
| [13] | Kota SAWADA;Hideaki KUSHIMA;Kazuhiro KIMURA .Z-phase Formation during Creep and Aging in 9-12% Cr Heat Resistant Steels[J].ISIJ International,2006(5):769-775. |
| [14] | J. Erneman;M. Schwind;P. Liu .Precipitation reactions caused by nitrogen uptake during service at high temperatures of a niobium stabilised austenitic stainless steel[J].Acta materialia,2004(14):4337-4350. |
| [15] | Leonardo Cipolla;Hilmar K. Danielsen;Dario Venditti .Conversion of MX nitrides to Z-phase in a martensitic 12% Cr steel[J].Acta materialia,2010(2):669-679. |
| [16] | 殷凤仕,刘志良,薛冰,姜学波,周丽.微量碳和氮对9%Cr耐热钢中第二相析出行为的影响[J].动力工程学报,2010(04):258-262. |
| [17] | PARK D B;HUH M Y;JUNG W S et al.Effect of vanadium addition on the creep resistance of 18Cr9Ni3CuNbN austenitic stainless heat resistant steel[J].Journal of Alloys and Compounds,2013,574:532538. |
| [18] | ISEDA A;OKADA H;SEMBA H et al.Long term creep properties and microstructure of SUPER304H,TP347HFG and HR3C for A-USC boilers[J].Energy Materials:Materials Science and Engineering for Energy Systems,2007,2(04):199-206. |
| [19] | DUJ;LIANGJ;ZHAO H et al.Research on microstructure and mechanical property of S30432 superheater pipe aged at 700℃[J].Steel Research International,2012,83(11):1095-1102. |
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