Charpy Impact Testing at 20°K

Kiefer, T. F.; Keys, R. D.; Schwartzberg, F. R.

doi:10.1007/978-1-4684-3108-7_7

Cited by 8 publications

(2 citation statements)

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“…• boxing (specimens insulated by means of grooved polystyrene foam, with liquid helium continuously flowing from a storage dewar) [10]; • encapsulation (specimens wrapped in a pipe-like casing of grooved polystyrene foam with LHe inlet and outlet, placed on the Charpy anvils) [11,12]; • use of a double-walled vacuum-insulated glass dewar (also placed on the anvils, and filled with helium) [13][14][15]. In older literature references [8,16], some authors even resorted to encapsulating impact test machines, as well as specimens.…”

Section: Introductionmentioning

confidence: 99%

Instrumented Charpy tests at 77 K on 316L stainless steel welded plates

Lucon¹,

Benzing²

2021

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In the framework of a collaborative project between ASME, NASA, and NIST, instrumented Charpy tests have been performed at liquid nitrogen temperature (77 K, or -196 °C) on weld specimens extracted from the centers of four 316L welded stainless steel plates, each produced by a different vendor. Although the plates were produced in accordance with the same specifications from the same material (316L), clear differences in impact toughness have been observed, with the toughest welded plate exhibiting more than twice the absorbed energy of the least tough. Besides impact toughness, the availability of instrumented Charpy data has also allowed deriving estimates of dynamic yield strength and shear fracture appearance. Additional tensile and fracture toughness tests at 77 K and 4 K (liquid helium temperature) will be performed in this project.

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Section: Introductionmentioning

confidence: 99%

Instrumented Charpy tests at 77 K on 316L stainless steel welded plates

Lucon¹,

Benzing²

2021

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“…Since that time, several studies of this phenomenon have been carried out using Ti alloys. Several Ti alloys were investigated in the 1960s and 70s such as Ti-5Al-2.5Sn (Kiefer & Schwartzberg, 1967;Thompson & Odegard, 1973) and Ti-6Al-4V (Reiman, 1971;Odegard & Thompson, 1974;Imam & Gilmore, 1979). Later, Mills' group intensively studied this phenomenon using Ti-6Al and Ti-6Al-2Sn-4Zr-2Mo (Suri et al, 1999;Neeraj et al, 2000;Deka et al, 2006).…”

Section: Introductionmentioning

confidence: 99%