TY - JOUR
T1 - A new NDT technique based on bacterial cells to detect micro surface defects
AU - Santos, Telmo Jorge Gomes dos
AU - Miranda, Rosa Maria Mendes
AU - De Carvalho, Carla C C R
N1 - SCOPUSID:84894065569
WOS:000333999900008
PY - 2014/4
Y1 - 2014/4
N2 - This paper presents a new NDT technique based on bacterial cell suspensions to identify surface micro defects in a procedure similar to the one used in dye penetrant. Validation was performed using Rhodococcus erythropolis bacteria in aluminum, steel and copper samples, studying the penetration, liquid removal and revelation stages and the phenomena involved in each one, as well as, bacteria/material interaction. A detectability limit was estimated and this was seen to depend on the material. Under the tested conditions defects with a depth of 4.3, 2.9 and 6.8 mu m were identified in Al, steel and Cu, respectively.
AB - This paper presents a new NDT technique based on bacterial cell suspensions to identify surface micro defects in a procedure similar to the one used in dye penetrant. Validation was performed using Rhodococcus erythropolis bacteria in aluminum, steel and copper samples, studying the penetration, liquid removal and revelation stages and the phenomena involved in each one, as well as, bacteria/material interaction. A detectability limit was estimated and this was seen to depend on the material. Under the tested conditions defects with a depth of 4.3, 2.9 and 6.8 mu m were identified in Al, steel and Cu, respectively.
KW - Bacterial cells
KW - Detectability limit
KW - Micro surface defects
KW - Rhodococcus erythropolis
U2 - 10.1016/j.ndteint.2014.01.006
DO - 10.1016/j.ndteint.2014.01.006
M3 - Article
SN - 0963-8695
VL - 63
SP - 43
EP - 49
JO - Ndt & E International
JF - Ndt & E International
ER -