Page 41 - MSAM-3-1

Materials Science in Additive Manufacturing Carbon addition in IN738LC

A B C
1 1 1

A B C
2 2 2

A B C
3 3 3

Figure 6. Inverse pole figure (IPF) maps of specimens under the as-built, two-step heat treatment (HT), and three-step HT conditions for (A –A ) pure
1
3
IN738LC, (B –B ) In738LC mixed with 0.1 wt.% carbon, and (C –C ) IN738LC mixed with 0.3 wt.% of carbon. The IPFs are constructed with a viewing
3
1
1
3
direction parallel to the build direction.
A B

Figure 7. (A) Microhardness results of the three specimens under investigation after the two different heat treatment processes. (B) The room-
temperature tensile results of the as-built IN738LC and the as-built IN738LC with 0.3 wt.% carbon addition. It should be noted that the tensile property
of the 0.3 wt.% carbon-added sample was retrieved from its non-cracked regions. Care must be taken when interpreting its mechanical performance
for the entire built part.

Volume 3 Issue 1 (2024) 9 https://doi.org/10.36922/msam.2264