Heat treatment and properties of a hot work tool steel fabricated by additive manufacturing

By Faraz Deirmina, Nicola Peghini, B. AlMangour, Dariusz Grzesiak, M. Pellizzari. Materials Science & Engineering: A, 2019

184 citations recorded by the source corpus.

Abstract Additive manufacturing (AM) is increasingly used for the manufacturing of tools and dies; in this respect, apart from the optimization of processing parameters, it is important to establish the most proper heat treatment conditions for the fabricated parts. In this paper, the microstructure, and some properties of H13 hot work tool steel fabricated by selective laser melting (SLM) have been evaluated after direct tempering and in quenched and tempered condition. The as-built microstructure consists of a partially tempered martensite and a much higher amount (up to 19%vol) of retained austenite (RA) compared to the quenched steel (RA

Subfields: Automotive Engineering, Mechanical Engineering

View Paper: https://www.semanticscholar.org/paper/0dd70178363495523fa79017f08a90a14458a08b

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In Automotive Engineering

1. M. Laleh
2. Dierk Raabe
3. M. Moyle
4. P. Kürnsteiner
5. A. Kini
6. S. Primig
7. N. Haghdadi
8. E. Jägle

In Mechanical Engineering

1. E. Jägle
2. M. Laleh
3. Dierk Raabe
4. M. Moyle
5. P. Kürnsteiner
6. A. Kini
7. S. Primig
8. N. Haghdadi

Citations in the corpus

• Steels in additive manufacturing: A review of their microstructure and properties (2020, background): “L-PBF produced samples that are tempered directly from the asproduced state do not show the dip in hardness at low tempering temperatures that is characteristic for conventionally produced material and that is due to softening of the martensite [172,174].”
• Additive manufacturing of steels: a review of achievements and challenges (2020, background): “The microstructure of AM H13 consists of cells and dendrites with retained austenite regions observed in the interdendritic areas [210, 211] (Fig.”