TY - JOUR
T1 - Glass-ceramic joining of Fe22Cr porous alloy to Crofer22APU: interfacial issues and mechanical properties
AU - D' Isanto, Fabiana
AU - Salvo, Milena
AU - Molin, Sebastian
AU - Koszelow, Damian
AU - Javed, Hassan
AU - Akram, Sufyan
AU - Chrysanthou, Andreas
AU - Smeacetto, Federico
N1 - © 2022 Elsevier Ltd and Techna Group S.r.l. All rights reserved. This is the accepted manuscript version of an article which has been published in final form at https://doi.org/10.1016/j.ceramint.2022.06.166
PY - 2022/10/1
Y1 - 2022/10/1
N2 - This work deals with the joining of porous Fe22Cr ferritic stainless steel to a dense Crofer22APU plate by using a silica-based, Ba-containing glass-ceramic. The chemical and interfacial stability and the mechanical properties of the joints were evaluated before and after thermal ageing at 700°C for 500hrs. The sintering behaviour of the glass was assessed by using heating stage microscopy (HSM) to study the influence of a porous metal substrate on the shrinkage of the joining material. Scanning electron microscopy revealed that there were no defects or cracks at the porous alloy/glass-ceramic interface for both the as-joined samples and the samples after thermal ageing at 700°C for 500 hrs. However, at this exposure temperature, the porous alloy started to form an oxide scale at the interface with the glass-ceramic and the internal surface of the porous alloy. Finally, the evaluation of the mechanical properties by tensile testing showed that the properties were not affected by thermal ageing at 700°C.
AB - This work deals with the joining of porous Fe22Cr ferritic stainless steel to a dense Crofer22APU plate by using a silica-based, Ba-containing glass-ceramic. The chemical and interfacial stability and the mechanical properties of the joints were evaluated before and after thermal ageing at 700°C for 500hrs. The sintering behaviour of the glass was assessed by using heating stage microscopy (HSM) to study the influence of a porous metal substrate on the shrinkage of the joining material. Scanning electron microscopy revealed that there were no defects or cracks at the porous alloy/glass-ceramic interface for both the as-joined samples and the samples after thermal ageing at 700°C for 500 hrs. However, at this exposure temperature, the porous alloy started to form an oxide scale at the interface with the glass-ceramic and the internal surface of the porous alloy. Finally, the evaluation of the mechanical properties by tensile testing showed that the properties were not affected by thermal ageing at 700°C.
U2 - 10.1016/j.ceramint.2022.06.166
DO - 10.1016/j.ceramint.2022.06.166
M3 - Article
SN - 0272-8842
VL - 48
SP - 28519
EP - 28527
JO - Ceramics International
JF - Ceramics International
IS - 19, Part A
ER -