Influence of heat treatment on properties of SD251-PH1 composite produced by additive SLM technology

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23210%2F20%3A43958045" target="_blank" >RIV/49777513:23210/20:43958045 - isvavai.cz</a>

Výsledek na webu

<a href="https://iopscience.iop.org/article/10.1088/1757-899X/723/1/012003/pdf" target="_blank" >https://iopscience.iop.org/article/10.1088/1757-899X/723/1/012003/pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1757-899X/723/1/012003" target="_blank" >10.1088/1757-899X/723/1/012003</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Influence of heat treatment on properties of SD251-PH1 composite produced by additive SLM technology

Popis výsledku v původním jazyce

The aim of this case study was to evaluate how heat treatment affects the structure and properties of the engineered composite material labelled SD251-PH1. This composite material was formed by mixing two powder blends in a weight ratio of 90 wt. % WC-Co powder SD251 with 10 wt. % of a PH1 steel precipitation hardenable powder. Samples were prepared from the thus prepared mixture on an additive device of the SLM type under parameters in which their structure was formed by open porosity. The printed samples were then divided into groups. Some of them were left and the other part was used for heat treatment by curing. The selected procedure for the heat treatment of prototype samples was based on the norm ASM 5659. Light and electron microscopy metallographic analysis together with X-ray diffraction analysis were then used to evaluate structural and phase changes in the volume of prototype samples. These analyses were performed before and after their heat treatment. The main attention was paid to changes in the phase composition of samples. In addition, changes in the size and shape of pores and tungsten carbide (WC) grains were studied. The metallographic analysis was supplemented by the evaluation of changes in their mechanical properties and changes in their wear resistance. Vickers hardness measurements and the Ball on Disk test were used for this purpose. For example, based on the experiments carried out, it was possible to determine that due to the selected heat treatment process, new structural phases were precipitated which differed from the original sample structure in terms of shape, size, chemical composition, and mechanical properties.

Název v anglickém jazyce

Influence of heat treatment on properties of SD251-PH1 composite produced by additive SLM technology

Popis výsledku anglicky

The aim of this case study was to evaluate how heat treatment affects the structure and properties of the engineered composite material labelled SD251-PH1. This composite material was formed by mixing two powder blends in a weight ratio of 90 wt. % WC-Co powder SD251 with 10 wt. % of a PH1 steel precipitation hardenable powder. Samples were prepared from the thus prepared mixture on an additive device of the SLM type under parameters in which their structure was formed by open porosity. The printed samples were then divided into groups. Some of them were left and the other part was used for heat treatment by curing. The selected procedure for the heat treatment of prototype samples was based on the norm ASM 5659. Light and electron microscopy metallographic analysis together with X-ray diffraction analysis were then used to evaluate structural and phase changes in the volume of prototype samples. These analyses were performed before and after their heat treatment. The main attention was paid to changes in the phase composition of samples. In addition, changes in the size and shape of pores and tungsten carbide (WC) grains were studied. The metallographic analysis was supplemented by the evaluation of changes in their mechanical properties and changes in their wear resistance. Vickers hardness measurements and the Ball on Disk test were used for this purpose. For example, based on the experiments carried out, it was possible to determine that due to the selected heat treatment process, new structural phases were precipitated which differed from the original sample structure in terms of shape, size, chemical composition, and mechanical properties.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2020

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

IOP Conference Series: Materials Science and Engineering

ISBN

—

ISSN

1757-8981

e-ISSN

1757-899X

Počet stran výsledku

9

Strana od-do

1-9

Název nakladatele

IOP Publishing Ltd

Místo vydání

Bristol

Místo konání akce

Plzeň

Datum konání akce

10. 9. 2019

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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