1 results listed
In this study, influence of grain size on degree of
sensitization and susceptibility to intergranular corrosion of
AISI 316 austenitic stainless steel was investigated. As-received
AISI 316 austenitic stainless steel samples were first solution
heat treated at 1050 oC for 0.5 h, 1.5 h and 3 h in order to obtain
different grain sizes and then, each of them was heat treated
for sensitization at 700 oC for 1h followed by water quenching.
Grain size measurements of the first set of samples were
performed by linear intercept method according to ASTM
E112 standard and the degree of sensitization was measured by
double loop electrochemical potentiodynamic reactivation
(DLEPR) test. The results showed that grain size increased as
the solution heat treatment time increased. A decrease in the
degree of sensitization was observed for the samples having
larger grains. That is to say, the increase in grain size improved
intergranular corrosion resistance.
International Iron & Steel Symposium
UDCS
Hüseyin Zengin
Yunus Türen
Hayrettin Ahlatçı
Yavuz Sun
Burak Dursun Ünsever