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Products tagged with 'selective laser melting'

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Picture for Critical Factors Affecting the Pitting Corrosion Resistance of Additively Manufactured Ni-based Alloy
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Critical Factors Affecting the Pitting Corrosion Resistance of Additively Manufactured Ni-based Alloy in Chloride Containing Environments

Product Number: 51317--9345-SG
ISBN: 9345 2017 CP
Author: Helmuth Sarmiento Klapper
Publication Date: 2017
$20.00

Additive manufacturing can manufacture components that were previously impossible - without compromising strength, ductility and corrosion resistance. The pitting corrosion resistance of a selective laser melted Nickel alloy has been evaluated by electrochemical methods. 
Picture for Influence Of The Surface Condition On The Pitting And SCC Resistance Of Alloy UNS N07718 Produced Via Selective Laser Melting
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Influence Of The Surface Condition On The Pitting And SCC Resistance Of Alloy UNS N07718 Produced Via Selective Laser Melting

Product Number: 51321-16949-SG
Author: Madison Woolridge; Christoph Wangenheim; Helmuth Sarmiento Klapper
Publication Date: 2021
$20.00
Picture for The Effect Of Build Orientation On The Corrosion Behavior Of SLM 304L Alloys
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The Effect Of Build Orientation On The Corrosion Behavior Of SLM 304L Alloys

Product Number: 51321-16904-SG
Author: Ho Lun Chan; Armando Shehi; Tan Pan; Joseph Newkirk; Vilupanur A. Ravi
Publication Date: 2021
$20.00
Picture for Understanding the Influence of Surface Condition on the Fatigue and Corrosion Fatigue Behavior of SLM718
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Understanding the Influence of Surface Condition on the Fatigue and Corrosion Fatigue Behavior of SLM718

Product Number: 51324-21234-SG
Author: Helmuth Sarmiento Klapper; Nils Holzapfel; Wei Chen; Juan Carlos Flores
Publication Date: 2024
$40.00
Selective laser melting (SLM) is a widely used additive manufacturing (AM) process, also for producing components using precipitation-hardenable nickel alloy 718 (UNS N07718). SLM has been largely accepted into many industries including oil and gas (O&G) with current research efforts focused on demonstrating materials performance in demanding applications including directional drilling and reservoir characterization tools. A broader applicability of additively manufactured UNS N07718 in such applications is currently conditioned by characterization efforts limited to corrosion testing on machined surfaces, which are not representative of the surface resulting from SLM process. The lack of understanding regarding the influence of as-printed surface conditions for UNS N07718 produced via SLM on fatigue and corrosion fatigue limits its applicability to the machined surface condition, thus negating benefits gained during the manufacturing process. In this research work, the fatigue and corrosion fatigue behavior of additively manufactured UNS N07718 in as-printed conditions was investigated. Besides fatigue in air at ambient temperature, corrosion fatigue of SLM718 was tested in alkaline 5 M chloride-containing brines at 125 °C to simulate a typical drilling environment. Experimental results have shown that as-printed surfaces of SLM718 are significantly more prone to fatigue and corrosion fatigue compared to machined surfaces. Besides increased surface roughness the presence of near-surface defects typical of AM can be seen as the reason for the observed fatigue behavior.
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