2016
DOI: 10.3989/revmetalm.068
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Heat input effect on the microstructural transformation and mechanical properties in GTAW welds of a 409L ferritic stainless steel

Abstract: Welds without filler metal and welds using a conventional austenitic stainless steel filler metal (ER308L) were performed to join a ferritic stainless steel with Gas Tungsten Arc Welding process (GTAW). Welding parameters were adjusted to obtain three different heat input values. Microstructure reveals the presence of coarse ferritic matrix and martensite laths in the Heat Affected Zone (HAZ). Dilution between filler and base metal was correlated with the presence of austenite, martensite and ferrite in the we… Show more

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Cited by 4 publications
(1 citation statement)
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“…Comparing the base metal with the weld metal and the HAZ, a hardness increment was observed. It is estimated that the reason for this increase is martensite formation with reference to previous studies (Delgado et al, 2016). Another point to be noted here is that the hardness level, which is almost the same in non-welded samples, contains large differences in the regions mentioned in welded samples.…”
Section: Vickers Micro Hardness Test Resultssupporting
confidence: 65%
“…Comparing the base metal with the weld metal and the HAZ, a hardness increment was observed. It is estimated that the reason for this increase is martensite formation with reference to previous studies (Delgado et al, 2016). Another point to be noted here is that the hardness level, which is almost the same in non-welded samples, contains large differences in the regions mentioned in welded samples.…”
Section: Vickers Micro Hardness Test Resultssupporting
confidence: 65%