Effects of Heat Treatment Procedures and Diamond Burnishing on Tensile Properties and Surface Integrity of Additively Manufactured 17-4PH Steel Cylindrical Parts.
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| Title: | Effects of Heat Treatment Procedures and Diamond Burnishing on Tensile Properties and Surface Integrity of Additively Manufactured 17-4PH Steel Cylindrical Parts. |
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| Authors: | Duncheva, Galya1,2 (AUTHOR) duncheva@tugab.bg, Maximov, Jordan1,2 (AUTHOR), Dunchev, Vladimir1,2,3 (AUTHOR), Anchev, Angel1,2,4 (AUTHOR), Todorov, Vladimir1,2 (AUTHOR), Argirov, Yaroslav2,3 (AUTHOR), Anastasov, Kalin2,3,4 (AUTHOR), Mitev, Hristian2,4 (AUTHOR) |
| Source: | Materials (1996-1944). Jun2026, Vol. 19 Issue 11, p2192. 33p. |
| Subjects: | Heat treatment, Powder bed fusion, Heat treatment of steel, Three-dimensional printing, Surface finishing, Mechanical behavior of materials, Tensile strength, Surface properties |
| Abstract: | This article presents a new combined post-processing concept to improve the quality of laser powder bed fusion (LPBF) of 17-4PH stainless steel (SS) cylindrical parts fabricated from N2-atomised LaserForm 17-4PH (B) powder. The concept is based on consecutive heat treatment procedures and diamond burnishing (DB) processes. A two-stage study was conducted. The first stage was an LPBF process experiment. The following combination of LPBF parameter values was selected after optimisation: a laser power of P = 150 W , laser scanning speed of v = 1200 mm/s, and layer thickness of t = 40 μ m . In the second stage, this combination was used to evaluate the effects of two heat treatment procedures (HT1 and HT2) and two DB processes (using burnishing forces of 100 N and 300 N) on the tensile properties and surface integrity of LPBF 17-4PH SS cylindrical samples. The HT2 procedure, including annealing (1200 ∘ , 4 h) , solution treatment ( 1060 ∘ , 1 h) , cooling ( − 70 ∘ C , 2 h ), and ageing ( 482 ∘ , 4 h ) led to yield limit, tensile strength, and Vickers hardness values of Y L = 1071 M P a , T S = 1410 M P a , and 523 H V , respectively. The concept presented takes advantage of the combination of the transformation, precipitation and strain-hardening effects. The combined effect was most pronounced in the samples subjected to the HT2 procedure and subsequent DB (300 N), for which a retained austenite fraction of 6.93%, surface microhardness of 563 H V 0.05 and the maximum values of the compressive axial and hoop RSs of − 1426.3 M P a and − 1095.9 M P a , respectively, were measured. [ABSTRACT FROM AUTHOR] |
| Copyright of Materials (1996-1944) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
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| Header | DbId: egs DbLabel: Engineering Source An: 194587103 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Effects of Heat Treatment Procedures and Diamond Burnishing on Tensile Properties and Surface Integrity of Additively Manufactured 17-4PH Steel Cylindrical Parts. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Duncheva%2C+Galya%22">Duncheva, Galya</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> duncheva@tugab.bg</i><br /><searchLink fieldCode="AR" term="%22Maximov%2C+Jordan%22">Maximov, Jordan</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Dunchev%2C+Vladimir%22">Dunchev, Vladimir</searchLink><relatesTo>1,2,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Anchev%2C+Angel%22">Anchev, Angel</searchLink><relatesTo>1,2,4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Todorov%2C+Vladimir%22">Todorov, Vladimir</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Argirov%2C+Yaroslav%22">Argirov, Yaroslav</searchLink><relatesTo>2,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Anastasov%2C+Kalin%22">Anastasov, Kalin</searchLink><relatesTo>2,3,4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Mitev%2C+Hristian%22">Mitev, Hristian</searchLink><relatesTo>2,4</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Materials+%281996-1944%29%22">Materials (1996-1944)</searchLink>. Jun2026, Vol. 19 Issue 11, p2192. 33p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Heat+treatment%22">Heat treatment</searchLink><br /><searchLink fieldCode="DE" term="%22Powder+bed+fusion%22">Powder bed fusion</searchLink><br /><searchLink fieldCode="DE" term="%22Heat+treatment+of+steel%22">Heat treatment of steel</searchLink><br /><searchLink fieldCode="DE" term="%22Three-dimensional+printing%22">Three-dimensional printing</searchLink><br /><searchLink fieldCode="DE" term="%22Surface+finishing%22">Surface finishing</searchLink><br /><searchLink fieldCode="DE" term="%22Mechanical+behavior+of+materials%22">Mechanical behavior of materials</searchLink><br /><searchLink fieldCode="DE" term="%22Tensile+strength%22">Tensile strength</searchLink><br /><searchLink fieldCode="DE" term="%22Surface+properties%22">Surface properties</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: This article presents a new combined post-processing concept to improve the quality of laser powder bed fusion (LPBF) of 17-4PH stainless steel (SS) cylindrical parts fabricated from N2-atomised LaserForm 17-4PH (B) powder. The concept is based on consecutive heat treatment procedures and diamond burnishing (DB) processes. A two-stage study was conducted. The first stage was an LPBF process experiment. The following combination of LPBF parameter values was selected after optimisation: a laser power of P = 150   W , laser scanning speed of v = 1200 mm/s, and layer thickness of t = 40   μ m . In the second stage, this combination was used to evaluate the effects of two heat treatment procedures (HT1 and HT2) and two DB processes (using burnishing forces of 100 N and 300 N) on the tensile properties and surface integrity of LPBF 17-4PH SS cylindrical samples. The HT2 procedure, including annealing (1200 ∘ , 4   h) , solution treatment ( 1060 ∘ , 1   h) , cooling ( − 70   ∘ C , 2   h ), and ageing ( 482 ∘ , 4   h ) led to yield limit, tensile strength, and Vickers hardness values of Y L = 1071   M P a , T S = 1410   M P a , and 523   H V , respectively. The concept presented takes advantage of the combination of the transformation, precipitation and strain-hardening effects. The combined effect was most pronounced in the samples subjected to the HT2 procedure and subsequent DB (300 N), for which a retained austenite fraction of 6.93%, surface microhardness of 563   H V 0.05 and the maximum values of the compressive axial and hoop RSs of − 1426.3   M P a and − 1095.9   M P a , respectively, were measured. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Materials (1996-1944) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.3390/ma19112192 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 33 StartPage: 2192 Subjects: – SubjectFull: Heat treatment Type: general – SubjectFull: Powder bed fusion Type: general – SubjectFull: Heat treatment of steel Type: general – SubjectFull: Three-dimensional printing Type: general – SubjectFull: Surface finishing Type: general – SubjectFull: Mechanical behavior of materials Type: general – SubjectFull: Tensile strength Type: general – SubjectFull: Surface properties Type: general Titles: – TitleFull: Effects of Heat Treatment Procedures and Diamond Burnishing on Tensile Properties and Surface Integrity of Additively Manufactured 17-4PH Steel Cylindrical Parts. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Duncheva, Galya – PersonEntity: Name: NameFull: Maximov, Jordan – PersonEntity: Name: NameFull: Dunchev, Vladimir – PersonEntity: Name: NameFull: Anchev, Angel – PersonEntity: Name: NameFull: Todorov, Vladimir – PersonEntity: Name: NameFull: Argirov, Yaroslav – PersonEntity: Name: NameFull: Anastasov, Kalin – PersonEntity: Name: NameFull: Mitev, Hristian IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 06 Text: Jun2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 19961944 Numbering: – Type: volume Value: 19 – Type: issue Value: 11 Titles: – TitleFull: Materials (1996-1944) Type: main |
| ResultId | 1 |
