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Nanoindenter Test of 680MPa Dual Phase Steel Charged with Hydrogen
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 Title & Authors
Nanoindenter Test of 680MPa Dual Phase Steel Charged with Hydrogen
Choi, Jong-Woon; Park, Jae-Woo; Kang, Kae-Myung;
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 Abstract
Nanoindentater tests were conducted to conducted nanoindentation microhardness of the individual phase of ferrite and martensite of 680MPa dual-phase (DP) steel charged with hydrogen. Hydrogen was charged by electrochemical method with current densities of 150, for charging times of 5, 10, 25, 50 hours, respectively. Nanoindenter test results showed that the nanoindentation microhardnesses of ferrite phase of DP steel were varied from min. 1.58 GPa to max. 2.82 GPa, and the nanoindentation microhardnesses of martensite phase varied from min. 3.19 GPa to max. 5.16 GPa with the variation of hydrogen charging conditions. It was observed that the variations of the nanoindention microhardnesses of martenstie phase were higher than those of ferrite phases. It was thought that martensite phase in the 680MPa DP steel was more sensitive than ferrite phase to hydrogen embrittlement.
 Keywords
Nanoindentatier test;Electrochemical method;680MPa DP steel;Hydrogen embrittlement;
 Language
Korean
 Cited by
1.
다른 전해질분위기에서 수소주입시킨 TRIP강의 SP시험,김광식;유광현;박재우;강계명;

한국가스학회지, 2015. vol.19. 1, pp.64-70 crossref(new window)
1.
Small Punch Test of TRIP Steel Charged with Hydrogen under Different Electrolyte Condition, Journal of the Korean Institute of Gas, 2015, 19, 1, 64  crossref(new windwow)
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