Advanced search
Start date
Betweenand
Related content
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

arkhausen Noise monitoring of microstructure and surface residual stress in maraging steel manufactured by Powder Bed Fusion and agin

Full text
Author(s):
de Oliveira, Amanda Rossi [1] ; Jovicevic-Klug, Matic [2, 3] ; de Oliveira, Vitor Furlan [4] ; Teixeira, Julio Carlos [1] ; Del Conte, Erik Gustavo [1]
Total Authors: 5
Affiliation:
[1] Fed Univ ABC, Engn Modeling & Appl Social Sci Ctr, Ave Estados, BR-09210550 Santo Andre 5001, SP - Brazil
[2] Inst Met & Technol, Dept Metall Mat & Technol, Lepi Pot 11, Ljubljana 1000 - Slovenia
[3] Max Planck Inst Eisenforsch GmbH, Dept Microstruct Phys & Alloy Design, Dusseldorf - Germany
[4] Univ Sao Paulo, Escola Politecn, Ave Prof Luciano Gualberto, BR-05508010 Sao Paulo 380 - Brazil
Total Affiliations: 4
Document type: Journal article
Source: INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY; v. 119, n. 3-4 NOV 2021.
Web of Science Citations: 0
Abstract

Laser Powder Bed Fusion (LPBF) refers to processes conducted layerwise from material powder, which delivers innovative shapes. Nondestructive inspection can significantly benefit LPBF products, considering the tight application requirements. Magnetic Barkhausen Noise (MBN) is an interesting method due to its potential for nondestructive in situ inspections; however, it is still a concern for additively manufactured parts because of their complex microstructure. This study investigated how the MBN signal is influenced by the maraging steel microstructure and surface residual stress in LPBF parts with two build orientations (XYZ and YZX) before and after aging (480 degrees C for 3 h). Microstructural characterizations were performed with multiple microscopy techniques. Surface residual stress was assessed with X-ray diffraction, and the MBN was collected along two directions (theta 0 degrees and theta 90 degrees). Different correlation coefficients between surface residual stress and MBNenergy, varying between 0.53 (theta 0 degrees) and 0.98 (theta 90 degrees), could be mainly explained by surface stress states and some microstructural differences, like the columnar structures and weak crystallographic texture along build orientation. MBN envelope shapes also allow the comprehension of surface residual stress changes undistinguished with the MBNenergy. These findings clarified some potential uses of the MBN for inspecting Laser Powder Bed Fused materials. (AU)

FAPESP's process: 21/00553-6 - Advanced manufacturing: an investigation of the effect of process gases on the magnetic and mechanical properties of maraging 300 steel samples produced by powder bed fusion
Grantee:Erik Gustavo Del Conte
Support Opportunities: Regular Research Grants
FAPESP's process: 18/11282-0 - Advanced Manufacturing: research of process parameters effects on surface quality of metal parts
Grantee:Erik Gustavo Del Conte
Support Opportunities: Regular Research Grants