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A D V A N C E D
M A T E R I A L S
&
P R O C E S S E S | F E B R U A R Y
2 0 1 6
1 5
retained austenite regions within the
HAZ at high heat inputs. In the absence
of coarse retained austenite, the weld
exhibits tensile properties that correlate
well with its hardness. A more complete
solution for welding these steels would
involve the use of specially designed
fillers, which will be discussed in future
work. Detailed studies should also be
conducted concerning the influence of
welding on the precipitates. ~AM&P
For more information: Peter Kirbis is
a Ph.D. student at University of Maribor
in Slovenia, ,
This article has been adapted from
a full length feature in Metallography, Mi-
crostructure, and Analysis 4.6 (2015): 570-
578, DOI 10.1007/s13632-015-0234-0.
© Springer Science+Business Media New
York and ASM International 2015.
Acknowledgments
The authors thank colleagues at
Quicktig for preparing the coating for
A-TIG welding.
References
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Fig. 6 — Weld intersection of Weld 2 shows the dendritic structure of the weld and the reausten-
itized region. Etched with 7% aqueous Na2S2O 5.
Fig. 7 — LOMmosaic image of Detail (a) in Fig. 6 shows segregations and grain growth within
the reaustenitized region of Weld 2. Left side is etched with 7% aqueous Na 2S2O5; right side is
etched with Vilella’s reagent.
Fig. 8 — LOMmosaic image of Detail (b)
in Fig. 6 shows coarse retained austenite
regions. Etched with Vilella’s reagent.