Fracture and Structural Integrity e-ISSN 1971-8993 Open access
Fractography and Advanced metallography Vol. 15, No. 56 (2021)

Haynes 242 Alloy for Lares 2 Satellite

Author and affiliation details
  • Daniela Pilone Corresponding author DICMA, Sapienza Università di Roma, Via Eudossiana 18, 00184 Roma, Italy daniela.pilone@uniroma1.it
  • Andrea brotzu DICMA, Sapienza Università di Roma, Via Eudossiana 18, 00184 Roma, Italy
  • Ferdinando Felli DICMA, Sapienza Università di Roma, Via Eudossiana 18, 00184 Roma, Italy
  • Ignazio Ciufolini Dipartimento di Ingegneria dell’Innovazione, Università del Salento, Via per Monteroni, 73100 Lecce, Italy
  • Barbara Negri Agenzia Spaziale Italiana, Italy
  • Claudio Paris Centro Ricerche Enrico Fermi, Via Panisperna 89/A, 00184 Roma, Italy
DOI
10.3221/IGF-ESIS.56.04
Pages
56-64
Published
Licence
CC BY 4.0
Published inVol. 15, No. 56 (2021)Go to the issue

Abstract

The satellite LARES 2 is designed to test dragging of inertial frames, or frame-dragging, predicted by Einstein’s theory of General Relativity, with accuracy of a few parts in a thousand. For this purpose, besides the typical requirements for a space construction, a high density alloy must be used. In this paper are reported the studies performed on a nickel alloy, the Haynes 242, that is considered a possible candidate for manufacturing all the metallic parts of LARES 2 and other passive geodetic satellites. Haynes 242 density and mechanical properties are compliant with the requirements of the mission. Three different casting with the nominal composition of the alloy have been prepared and tested along with a commercial bar of Haynes 242. The results of tensile and hardness tests on several specimens with different aging time are reported, along with the relevant metallographic analysis. Furthermore, a test on the machinability, performed on a screw, which is the most demanding item from the manufacturing point of view, is reported.

Keywords

Article history

  1. ReceivedUntil the next stage: 1 day
  2. Revision requestedUntil the next stage: 5 days
  3. RevisedUntil the next stage: 0 days
  4. AcceptedUntil the next stage: 53 days
  5. Published

How to cite

APA

Pilone, D., brotzu, A., Felli, F., Ciufolini, I., Negri, B., & Paris, C. (2021). Haynes 242 Alloy for Lares 2 Satellite. Fracture and Structural Integrity, 15(56), 56–64. https://doi.org/10.3221/IGF-ESIS.56.04

IEEE

D. Pilone, A. brotzu, F. Felli, I. Ciufolini, B. Negri, and C. Paris, “Haynes 242 Alloy for Lares 2 Satellite,” Fracture and Structural Integrity, vol. 15, no. 56, pp. 56–64, 2021, doi: 10.3221/IGF-ESIS.56.04.

MLA

Pilone, Daniela, et al. “Haynes 242 Alloy for Lares 2 Satellite.” Fracture and Structural Integrity, vol. 15, no. 56, 2021, pp. 56–64. https://doi.org/10.3221/IGF-ESIS.56.04.

Chicago

Pilone, Daniela, Andrea brotzu, Ferdinando Felli, Ignazio Ciufolini, Barbara Negri, and Claudio Paris. 2021. “Haynes 242 Alloy for Lares 2 Satellite.” Fracture and Structural Integrity 15 (56): 56–64. https://doi.org/10.3221/IGF-ESIS.56.04.

Harvard

Pilone, D., brotzu, A., Felli, F., Ciufolini, I., Negri, B. and Paris, C. (2021) ‘Haynes 242 Alloy for Lares 2 Satellite’, Fracture and Structural Integrity, 15(56), pp. 56–64. doi: 10.3221/IGF-ESIS.56.04.

Vancouver

Pilone D, brotzu A, Felli F, Ciufolini I, Negri B, Paris C. Haynes 242 Alloy for Lares 2 Satellite. Fracture and Structural Integrity. 2021;15(56):56-64. doi:10.3221/IGF-ESIS.56.04

BibTeX

@article{pilone2021, author = {Pilone, Daniela and brotzu, Andrea and Felli, Ferdinando and Ciufolini, Ignazio and Negri, Barbara and Paris, Claudio}, title = {Haynes 242 Alloy for Lares 2 Satellite}, journal = {Fracture and Structural Integrity}, year = {2021}, volume = {15}, number = {56}, pages = {56--64}, doi = {10.3221/IGF-ESIS.56.04}, url = {https://doi.org/10.3221/IGF-ESIS.56.04}, issn = {1971-8993} }

RIS

TY - JOUR AU - Pilone, Daniela AU - brotzu, Andrea AU - Felli, Ferdinando AU - Ciufolini, Ignazio AU - Negri, Barbara AU - Paris, Claudio TI - Haynes 242 Alloy for Lares 2 Satellite JO - Fracture and Structural Integrity T2 - Fracture and Structural Integrity PY - 2021 DA - 2021/03/28 VL - 15 IS - 56 SP - 56 EP - 64 DO - 10.3221/IGF-ESIS.56.04 UR - https://doi.org/10.3221/IGF-ESIS.56.04 SN - 1971-8993 ER -

Licence

Creative Commons Attribution 4.0 International

May be shared and adapted, provided appropriate credit is given. Copyright © 2021 Daniela Pilone, Andrea brotzu, Ferdinando Felli, Ignazio Ciufolini, Barbara Negri, Claudio Paris.

Copyright 
Authors are allowed to retain both the copyright and the publishing rights of their articles without restrictions.  

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