为了优化热静压扩散连接工艺参数,应用有限元法对Be/HR-1不锈钢扩散连接界面附近铁和铍元素的分布进行了计算机模拟,并通过俄歇电子能谱(AES)进行实验测定.结合计算机模拟结果和实验数据探讨了扩散连接界面附近铁和铍元素的分布、扩散宽度与温度、压力和时间的关系.结果表明:在1050℃/60 MPa/2h和750℃/60 MPa/2 h热静压下,扩散连接界面附近Be,Fe元素分布的实测数据与计算机模拟结果基本吻合；在60 MPa/2 h热静压下,加热温度分别为1050和750℃时对扩散宽度影响的实测数据与计算机模拟结果基本吻合,1050℃时的扩散宽度是750℃时的2.5倍；在750℃/2 h热静压下,压力分别为30,40,50,60 MPa时对扩散宽度影响的实测数据与计算机模拟结果基本吻合,扩散宽度与压力成抛物线关系；在750℃/60 MPa热静压下,扩散宽度与扩散时间的模拟曲线也成抛物线关系.
参考文献
| [1] | 李亚江;王娟;夏春智.特种焊接技术及应用[M].北京:机械工业出版社,2008:133. |
| [2] | Torun O;Celikyurek I .Microdstructure and strength of diffusionbonded joint between nickel aluminide Ni75A125 and AISI 316 L stainless steel using a nickel interlayer[J].Kovove MaterialyMetallic Materials,2009,47(04):263. |
| [3] | Ustinov A I;Falchenko Yu V;Ishchenko A Y .Diffusion welding of γ-TiAl based alloys through nano-layered foil of Ti/Al system[J].Intermetallics,2008,16(08):1043. |
| [4] | 温亚辉,陈文革,丁秉钧.钼与石墨扩散焊接的界面反应分析[J].稀有金属,2011(02):227-231. |
| [5] | Xu D;Ling X.Numerical simulation of residual stress in the glass-to-metal diffusion seals[J].Materials Science Forum,2008(575):666. |
| [6] | 张鹏程,孔纪兰,周上祺,邹觉生.Be/00Cr17Ni14Mo2不锈钢扩散焊界面区成分的计算机模拟[J].核动力工程,2003(02):145-148. |
| [7] | Yukinobu NATSUME;Kenichi OHSASA;Yoshinori TAYU .Numerical Modeling of the Transient Liquid-phase Diffusion Bonding Process of Al Using Cu Filler Metal[J].ISIJ International,2003(12):1976-1982. |
| [8] | 李亚江,王娟,尹衍升,马海军.Fe3Al/18-8不锈钢扩散焊界面附近的元素扩散[J].金属学报,2005(02):150-156. |
| [9] | Karfoul MK;Tatlock GJ;Murray RT .The behaviour of iron and aluminium during the diffusion welding of carbon steel to aluminium[J].Journal of Materials Science,2007(14):5692-5699. |
| [10] | 沈孝芹,李亚江,Puchkov U A,王娟,黄万群.Al2O3-TiC/1Cr18Ni9Ti扩散焊接头应力分布[J].焊接学报,2008(10):41-44. |
| [11] | Kong Ting-fai;Chan Luen-chow;Lee Tai-chui .Weld diffusion analysis of forming bimetallic components using statistical experimental methods[J].Materials and Manufacturing Processes,2009,24(04):422. |
| [12] | 刘树英.纯铜与不锈钢扩散焊接头性能及原子扩散动态解析[J].焊接学报,2009(09):101-104. |
| [13] | 戴勇年.二元合金状态图集[M].北京:科学出版社,2009:188. |
| [14] | 李辉,康人木,周上祺,孔纪兰,张鹏程.Be/中间层/HR-1不锈钢热静压连接界面特性[J].核动力工程,2010(03):122-127. |
| [15] | Zhang PC.;Shen L.;Zhou JS.;Bai B. .Distribution of the composition and micromechanical properties of Be/316L stainless steel following diffusion bonding[J].Surface and Interface Analysis: SIA: An International Journal Devoted to the Development and Application of Techniques for the Analysis of Surfaces, Interfaces and Thin Films,2001(1):88-90. |
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