Using the design of experiments methodology to evaluate the heat treatment of additively manufactured maraging steel

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23210%2F23%3A43969534" target="_blank" >RIV/49777513:23210/23:43969534 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1016/j.jmrt.2023.09.117" target="_blank" >https://doi.org/10.1016/j.jmrt.2023.09.117</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jmrt.2023.09.117" target="_blank" >10.1016/j.jmrt.2023.09.117</a>

Result language

angličtina

Original language name

Using the design of experiments methodology to evaluate the heat treatment of additively manufactured maraging steel

Original language description

The effect of the processing parameters on the final microstructure and mechanical properties was investigated for additively manufactured maraging tool steel 1.2709. First, an effective range of appropriate combinations of heat treatment parameters was found using the design of experiments (DOE) method. This suggested 17 variations of heat treatment regimes. The effect of input parameters (initial condition, hardening temperature, hold at hardening temperature) on the output values (mechanical properties) was then statistically evaluated. Three initial conditions of the additively manufactured (AM) steel were used: as-built, annealed at 820 °C for 1 h and annealed at 940°C for 2 h. A subsequent heat treatment in the region of 250 °C - 750 °C was considered with holds of 0e6 h at the temperatures. Based on the measured mechanical properties, regression analysis was performed and optimal models for the prediction of individual mechanical properties were produced. The coefficient of determination of the models for yield and ultimate strengths and hardness reached above 95% when hardening temperature was considered a significant factor. It was around 98% in the case of tensile strength and hardness when the additional effect of the initial condition was also included in the models. This means a very reliable prediction of those mechanical properties can be expected. On the other hand, the model for total elongation can explain only 41% of the measured values, as not a single statistically significant factor was identified.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20501 - Materials engineering

Project

<a href="/en/project/EF18_069%2F0010040" target="_blank" >EF18_069/0010040: Research of additive technologies for future applications in machinery industry - RTI plus</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2023

Confidentiality

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

Name of the periodical

Journal of Materials Research and Technology JMR&amp;T

ISSN

2238-7854

e-ISSN

2214-0697

Volume of the periodical

26

Issue of the periodical within the volume

SEP-OCT 2023

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

16

Pages from-to

8688-8703

UT code for WoS article

001087101700001

EID of the result in the Scopus database

2-s2.0-85173441942