通过焊接与轧制制备的不锈钢/碳钢复合板的组织与性能
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摘要
采用焊接与轧制技术制备不锈钢/碳钢复合板,并对其微观组织、力学性能及退火对复合板的力学性能影响进行了分析。结果表明:不锈钢侧为奥氏体,晶粒细小,碳钢侧为铁素体和少量的珠光体组织;钎缝是由富铜相及其周围的富银相固溶体和黑色富铜相与相间的白色富银针状相组成的共晶组织。复合板的抗拉强度高于基材钢板;退火后,复合板的抗拉、抗弯强度及其整体硬度值明显下降,而冲击吸收能量、剪切强度有所提高。
Stainless steel / carbon steel clad plate was prepared by welding and rolling technology and the microstructure,the mechanical properties and the effect of annealing on the mechanical properties were studied.The results showed that the side of stainless steel is fine austenite and the side of carbon steel is ferrite and a few pearlites.The brazed seam is eutectic structure consisting of copper- rich phase with rich- silver phase surrounded and black copper- rich phase with white acicular silver- rich phase.The tensile strength of clad plate is higher than that of the base metal.After annealing,the tensile and bending strength and the hardness of the whole clad plate decrease obviously.However,the impact energy absortion and shear strength increase.
Stainless steel / carbon steel clad plate was prepared by welding and rolling technology and the microstructure,the mechanical properties and the effect of annealing on the mechanical properties were studied.The results showed that the side of stainless steel is fine austenite and the side of carbon steel is ferrite and a few pearlites.The brazed seam is eutectic structure consisting of copper- rich phase with rich- silver phase surrounded and black copper- rich phase with white acicular silver- rich phase.The tensile strength of clad plate is higher than that of the base metal.After annealing,the tensile and bending strength and the hardness of the whole clad plate decrease obviously.However,the impact energy absortion and shear strength increase.
引文
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[8]丁毅,王小霞,周栋,等.高频感应加热钎焊工艺制备碳钢/不锈钢复合板接头的显微组织[J].机械工程材料,2011,35(9);68-71.
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[2]赵渠森,郭恩明.先进复合材料手册[M].北京:机械工业出版社,2003:428-479.
[3]田雅琴,秦建平,李小红.金属复合板的工艺研究现状与发展[J].材料开发与应用,2006,21(1):40-43.
[4]吴彩虹,李廷举,金俊泽.双金属复层材料制备现状及研究进展[J].铸造,2005,54(2):103-107.
[5]杨晓杰.不锈钢与普通钢焊接件的金相试样制备方法[J].理化检验-物理分册,2005,41(12):639-640.
[6]李炯辉,林德成.金属材料金相图谱[M].北京:机械工业出版社,2006:1170-1177.
[7]Chen R B,Shiue R K.The microstructural observation and wettability study of active brazing beryllium copper and 304stainless steel[J].Journal of Materials Science Letters,2001,20(15):1435-1437.
[8]丁毅,王小霞,周栋,等.高频感应加热钎焊工艺制备碳钢/不锈钢复合板接头的显微组织[J].机械工程材料,2011,35(9);68-71.
[9]Zhou Y.Analytical modeling of isothermal solidification during transient liquid phase(TLP)bonding[J].Journal of Materials Science Letters,2001,20(9):841-844.
[10]崔忠圻,覃耀春.金属学与热处理[M].北京:机械工业出版社,2007:278-282.