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Impact Properties of AISI 316l Stainless Steel Repaired by Directed Energy Deposition (DED) Additive Manufacturing Process.

Record Type:	Language materials, manuscript : Monograph/item
Title/Author:	Impact Properties of AISI 316l Stainless Steel Repaired by Directed Energy Deposition (DED) Additive Manufacturing Process./
Author:	Mandal, Soumya.
Description:	1 online resource (69 pages)
Notes:	Source: Masters Abstracts International, Volume: 81-12.
Contained By:	Masters Abstracts International81-12.
Subject:	Mechanical engineering. -
Online resource:	click for full text (PQDT)
ISBN:	9798645484576

Impact Properties of AISI 316l Stainless Steel Repaired by Directed Energy Deposition (DED) Additive Manufacturing Process.
Mandal, Soumya.

Impact Properties of AISI 316l Stainless Steel Repaired by Directed Energy Deposition (DED) Additive Manufacturing Process. - 1 online resource (69 pages)

Source: Masters Abstracts International, Volume: 81-12.

Thesis (M.S.)--Oklahoma State University, 2019.

Includes bibliographical references

Directed Energy Deposition (DED) is considered as one of the potential processes for metallic structural repairs. In this work, the impact properties of the repaired stainless steel 316L were investigated. The repair was performed by depositing commercially available stainless steel 316L metal powder on the stainless steel 316L substrate using the DED process (LENS process). Strong bonding between the deposited layers and substrate and also between the layers in the deposited zone was observed under the proper selection and optimization of processing parameters. Results showed that the microstructure of the repaired zone generally consists of columnar and equiaxed grain structure. Heat Affected Zone (HAZ) provided the highest microhardness about 218HV, whereas the microhardness of the repaired zone and substrate was within the ranges of 192-209HV and 168-198HV, respectively. The impact properties of the repaired specimens were compared with the wrought stainless steel 316L (as-received). The average impact energy absorbed by the as-received specimens was higher than the repaired specimens. Moreover, the impact energy absorbed by the AM (subsize) and repaired (subsize) specimen were compared with the as-received specimens. The fractured surface morphology of both repaired and as-received specimens was also studied.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2024

Mode of access: World Wide Web

ISBN: 9798645484576Subjects--Topical Terms:

557493
Mechanical engineering.
Subjects--Index Terms:

Directed energy depositionIndex Terms--Genre/Form:

554714
Electronic books.

Impact Properties of AISI 316l Stainless Steel Repaired by Directed Energy Deposition (DED) Additive Manufacturing Process.
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500 $a Source: Masters Abstracts International, Volume: 81-12.
500 $a Advisor: Harimkar, Sandip P.
502 $a Thesis (M.S.)--Oklahoma State University, 2019.
504 $a Includes bibliographical references
520 $a Directed Energy Deposition (DED) is considered as one of the potential processes for metallic structural repairs. In this work, the impact properties of the repaired stainless steel 316L were investigated. The repair was performed by depositing commercially available stainless steel 316L metal powder on the stainless steel 316L substrate using the DED process (LENS process). Strong bonding between the deposited layers and substrate and also between the layers in the deposited zone was observed under the proper selection and optimization of processing parameters. Results showed that the microstructure of the repaired zone generally consists of columnar and equiaxed grain structure. Heat Affected Zone (HAZ) provided the highest microhardness about 218HV, whereas the microhardness of the repaired zone and substrate was within the ranges of 192-209HV and 168-198HV, respectively. The impact properties of the repaired specimens were compared with the wrought stainless steel 316L (as-received). The average impact energy absorbed by the as-received specimens was higher than the repaired specimens. Moreover, the impact energy absorbed by the AM (subsize) and repaired (subsize) specimen were compared with the as-received specimens. The fractured surface morphology of both repaired and as-received specimens was also studied.
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538 $a Mode of access: World Wide Web
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653 $a Directed energy deposition
653 $a Impact properties
653 $a Microstructure
653 $a Stainless steel 316L
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