Authors: MinSu Han SeokKi Jang SeongJong Kim
Publish Date: 2011/11/16
Volume: 30, Issue: 1, Pages: 633-638
Abstract
The structural steel demands are surging by the industry development Among them the demands of stainless steel has excellent anticorrosion properties are expanding to various fields including the ship offshore structure petrochemical industry and living appliance The stainless steel has some advantages that can change the property due to add chemical elements various heat treatments and processing However in the STS 304 which makes up the majority of demands currently involves a lot of risks the possibility of occurring stress corrosion cracking and hydrogen embrittlement of marine structure exposed to external forces and lower corrosion protection properties as destruction of passive layer in chloride environment In this paper we discuss the results of our investigations using potentiostatic slow strain rate test to estimate the durability of STS 304 against stress corrosion cracking SCC and hydrogen embrittlement HE under corrosive conditions of chloride ion exposure and tensile stress applied from external force The optimum corrosion protection range without stress corrosion cracking and hydrogen embrittlement was concluded with the potential range of −05 ∼ −02 V vs Ag/AgCl
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