Effect of interlayer addition on microstructure and mechanical properties of NiTi/stainless steel joint by electron beam welding
H. Niua,b, H.C. Jianga,*(), M.J. Zhaoa, L.J. Ronga,*()

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Fig. 15.. Schematic drawing of main crack deflection in the joint with FeNi interlayer. Intermetallic compounds region is on the right side of dotted line, and austenite region with simplified representation is on the left side of dotted line. The columnar and exquiaxed dendrites of Fe2Ti phase are shown in the figure. Ni3Ti phase is distributed around Fe2Ti dendrites. Green lines represent model-I cracks and red lines represent model-II cracks.