An investigation over microstructure and HIP processing effects on wear performance of pure chromium parts fabricated by laser powder bed fusion

Bulutsuz, Asli Gunay; Gulec, Buse; Gokcekaya, Ozkan et al.

International Journal of Refractory Metals and Hard Materials, 2024, 120, 106616

Number of Access:607（2025-08-21 04:36 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/94898

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Title
An investigation over microstructure and HIP processing effects on wear performance of pure chromium parts fabricated by laser powder bed fusion
Creator
CreatorName
Bulutsuz, Asli Gunay
CreatorName
Gulec, Buse
NRID
1000050988160 1000050988160
CreatorName
Gokcekaya, Ozkan
CreatorName
Gardstam, Johannes
NRID
1000030243182 1000030243182
ORCID
0000-0001-8052-1698 0000-0001-8052-1698
researchmap permalink
read0013987 read0013987
Scopus Author ID
7403896013 7403896013
CreatorName
Nakano, Takayoshi
CreatorName
Yilmazer, Hakan
Subject
Crystallographic texture
Hot isostatic pressing
Laser powder bed fusion
Pure Cr
Wear performance
Description
Bulutsuz A.G., Gulec B., Gokcekaya O., et al. An investigation over microstructure and HIP processing effects on wear performance of pure chromium parts fabricated by laser powder bed fusion. International Journal of Refractory Metals and Hard Materials 120, 106616 (2024); https://doi.org/10.1016/j.ijrmhm.2024.106616.
Abstract
Chromium (Cr) and its alloys have long been valued for their exceptional properties, including corrosion resistance and high-temperature stability, rendering them indispensable in industrial applications such as chemical processing, energy production, and aerospace. However, due to the difficulties in Cr-based alloy manufacturing, there is a need for novel manufacturing methodologies. Additive Manufacturing (AM) emerges as a promising approach, particularly Laser Powder Bed Fusion (LPBF), which allows for intricate designs, reduced material waste, and simplified assembly. However, certain issues still need to be addressed, including defects like cracks and porosities in the manufactured parts. Post-processing techniques such as Hot Isostatic Pressing (HIP) have gained prominence for enhancing the material properties and quality of AM parts, including those produced using LPBF. HIP treatments are effective in eliminating internal pores, although some challenges remain, notably the presence of trapped argon and grain coarsening side effects of HIP process parameters. This study focuses on LPBF-processed pure chromium parts with crystallographic texture and investigates their properties after HIP treatment, including microstructure, hardness, and tribological performance. According to the obtained results: the HIP process reduced cracks, especially in the center region, but increased gaps in the side region. HIP also hindered grain realignment, limiting grain growth, and resulting in high HAGB density and low MUD values. Elevated HIP processing pressure negatively affected tribological performance due to increased grain size, and reduced hardness. This study, for the first time, realized the effect of HIP conditions on the microstructure and tribological performance of LPBF-processed pure Cr.
Publisher
Elsevier Ltd
Source Title
International Journal of Refractory Metals and Hard Materials
Volume (Issue)
120
Page
106616
Date of Issued
2024-04-01
Language
English
Handle URL
https://hdl.handle.net/11094/94898
PISSN
02634368
eISSN
22133917
Relation.isIdenticalTo
DOI (Publisher Version)
https://doi.org/10.1016/j.ijrmhm.2024.106616
Access Rights
open access
CopyRight
This article is licensed under a Creative Commons Attribution 4.0 International License.
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Version of Record
Category
学術雑誌論文 Journal Article