The structure and the properties of WC-Co samples produced by SLM technology and carbon-doped prior to HIP processing

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23210%2F22%3A43967442" target="_blank" >RIV/49777513:23210/22:43967442 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/49777513:23640/22:43967442 RIV/26316919:_____/22:N0000043 RIV/46747885:24210/22:00010241 RIV/26722445:_____/22:N0000065

Výsledek na webu

<a href="https://www.emerald.com/insight/content/doi/10.1108/RPJ-04-2022-0106/full/html" target="_blank" >https://www.emerald.com/insight/content/doi/10.1108/RPJ-04-2022-0106/full/html</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1108/RPJ-04-2022-0106" target="_blank" >10.1108/RPJ-04-2022-0106</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The structure and the properties of WC-Co samples produced by SLM technology and carbon-doped prior to HIP processing

Popis výsledku v původním jazyce

The purpose of this study is to verify how the carbon doping of the WC-Co cemented carbide (CC) affected their structure before their processing by hot isostatic pressing (HIP) technology. The samples for this experiment were fabricated by selective laser melting technology (SLM) using a YAG fiberl aser with a power of P = 40 W and a scanning speed of 83 mm/s. The subsequent carbon doping process was performed in a chamber furnace at 900 °C for 1, 4 and 12 h. The HIP was performed at 1,390°C and pressures of 40 MPa, 80 MPa and 120 MPa. The changes induced in the structures were evaluated using X-ray diffraction and various microscopic methods. X-ray diffraction analysis showed that the structure of the samples after SLM consisted of WC, W2C, Co4W2C and Co phases. As a result of the increase in the carbon content in the structure of the samples, the transition carbide W2C and structural phase Co4W2C decayed. Their decay was manifested by the coarsening of the minor alpha phase (WC), which occurred both during the carburizing process and during the subsequent processing using HIP. In the samples in which the structure was carburized prior to HIP, only the structural phases WC and Co were observed in most cases.The results confirm that it is possible to increase the homogeneity of the CC structure and thus its applicability in practice by additional carburization of the sample structure with subsequent processing by HIP technology.

Název v anglickém jazyce

The structure and the properties of WC-Co samples produced by SLM technology and carbon-doped prior to HIP processing

Popis výsledku anglicky

The purpose of this study is to verify how the carbon doping of the WC-Co cemented carbide (CC) affected their structure before their processing by hot isostatic pressing (HIP) technology. The samples for this experiment were fabricated by selective laser melting technology (SLM) using a YAG fiberl aser with a power of P = 40 W and a scanning speed of 83 mm/s. The subsequent carbon doping process was performed in a chamber furnace at 900 °C for 1, 4 and 12 h. The HIP was performed at 1,390°C and pressures of 40 MPa, 80 MPa and 120 MPa. The changes induced in the structures were evaluated using X-ray diffraction and various microscopic methods. X-ray diffraction analysis showed that the structure of the samples after SLM consisted of WC, W2C, Co4W2C and Co phases. As a result of the increase in the carbon content in the structure of the samples, the transition carbide W2C and structural phase Co4W2C decayed. Their decay was manifested by the coarsening of the minor alpha phase (WC), which occurred both during the carburizing process and during the subsequent processing using HIP. In the samples in which the structure was carburized prior to HIP, only the structural phases WC and Co were observed in most cases.The results confirm that it is possible to increase the homogeneity of the CC structure and thus its applicability in practice by additional carburization of the sample structure with subsequent processing by HIP technology.

Druh

J_imp - Článek v periodiku v databázi Web of Science

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

2022

Kód důvěrnosti údajů

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

Název periodika

RAPID PROTOTYPING JOURNAL

ISSN

1355-2546

e-ISSN

1758-7670

Svazek periodika

28

Číslo periodika v rámci svazku

11

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

21

Strana od-do

102-122

Kód UT WoS článku

000892530100001

EID výsledku v databázi Scopus

2-s2.0-85143199529