Fig. 1: Optical and SEM micrographs. | npj Materials Degradation

Fig. 1: Optical and SEM micrographs.

From: Enhanced hydrogen embrittlement resistance of directed energy deposition 316 L by post-manufacturing heat treatment

Fig. 1

a as-DED material and as-DED specimens heat treated at (b) 600 °C (HT-600), (c) 800 °C (HT-800), (d) 1200 °C (HT-1200), the built direction is out of plane. abbreviation ‘D’ and ‘E’ stands for ‘dendrite and equiaxed’ respectively. The dashed lines in (a3–c3) means the growth of cellular structure. Pores from the manufacturing process were always visible in (a3–d3).

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