[P] P88~P100 Materials Processing

[P97] Aging-temperature-dependent interfacial degradation in L-PBF CoCrNi/316L diffusion bonded joints under long-term thermal exposure

○Haotian Sun¹, Naoyuki Hashimoto¹, Hiroshi Oka¹, Qingyan Xue¹ (1. Hokkaido University)

Keywords:

L-PBF CoCrNi,Diffusion bonding,Long-term thermal exposure,Interfacial degradation

L-PBF CoCrNi/316L diffusion-bonded joints were aged at 300–700 °C for 6000 h. Interfacial diffusion, Cr-rich BCC precipitation, and tensile degradation were examined to clarify the aging-temperature-dependent interfacial degradation mechanism.