使用激光共聚焦显微镜、扫描电镜和示波冲击等实验手段研究了镍元素(0.0%~0.9%,质量分数,下同)对球墨铸铁的微观组织和低温冲击性能的影响,对低温断裂机理进行了探讨.结果表明:含镍0.7%退火态球墨铸铁的韧脆转变温度低于-60℃,其-70℃下冲击功高于12J;适量镍元素添加能有效地细化晶粒和强化基体,改善球墨铸铁的低温冲击性能.
参考文献
[1] | CARDARELLI F.Materials handbook:a concise desktop reference[M].New York:springer-verlag,2008 |
[2] | Yung-Hsiang Cheng .High-speed rail in Taiwan: New experience and issues for future development[J].Transport policy,2010(2):51. |
[3] | Taizo Makino;Takanori Kato;Kenji Hirakawa .Review of the fatigue damage tolerance of high-speed railway axles in Japan[J].Engineering Fracture Mechanics,2011(5):810-825. |
[4] | O.H. Ibrahim;I.S. Ibrahim;T.A.F. Khalifa .Impact behavior of different stainless steel weldments at low temperatures[J].Engineering failure analysis,2010(5):1069-1076. |
[5] | G.S. Cho,K.H. Choe,K.W. Lee,A.Ikenaga.Effects of Alloying Elements on the Microstructures and Mechanical Properties of Heavy Section Ductile Cast Iron[J].材料科学技术学报(英文版),2007(01):97-101. |
[6] | 孙玉福,尤三三,肖志云,赵靖宇,杨会龙.镍对低温高韧性球墨铸铁组织及性能的影响[J].铸造,2011(02):120-125. |
[7] | 王强,李雷,桃野正.球墨铸铁低温冲击韧性的研究[J].铸造,2010(02):193-196. |
[8] | Fatahalla, N;Abuelezz, A;Semeida, M .C, Si and Ni as alloying elements to vary carbon equivalent of austenitic ductile cast iron: Microstructure and mechanical properties[J].Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing,2009(1/2):81-89. |
[9] | ALAGARSAMY A.Ductile iron handbook[M].Des Plaines:American Foundrymen's Society,1992 |
[10] | KARSAY SI.Ductile iron production practices[M].Des Plaines:American Foundrymen's Society,1975 |
[11] | BURDITT MF.Ductile Iron Handbook[M].Des Plaines:American Foundrymen's Society,1993 |
[12] | 路焱,刘向东,李勇,李进福,乌迪,吕凯.含镍量对QT400-18L低温冲击韧度的影响[J].铸造技术,2006(12):1342-1345. |
[13] | SALZBRENNER R .Fracture toughness behaviour of ferritic ductile cast iron[J].Journal of Materials Science,1987,22(06):2135-2147. |
[14] | GB/T19748-2005.钢材夏比V型缺口摆锤冲击试验仪器化试验方法[S]. |
[15] | 孙莹,于庆波.低碳钢的解理断裂机理及微观形貌分析[J].昆明理工大学学报(自然科学版),2011(04):18-22. |
[16] | 李娟,王文先,张兰,苏娟,张红霞.AZ31镁合金的缺口冲击韧性及其断裂机理[J].材料科学与工程学报,2011(02):246-251. |
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