SLUB Dresden (Datenlieferant)

Ti-5Al-5Mo-5V-3Cr

hohe Festigkeit, hohe Duktilität, gutes Ermüdungsverhalten, gute Durchhärtbarkeit, gute plastische Verformbarkeit, gute Korrosionsbeständigkeit

Alchemist-hp, Titan-crystal bar, CC BY-SA 3.0 DE

Kategorie Metalle > Nichteisenmetalle > Leichtmetalle

Anwendungsgebiete Luft- und Raumfahrt; Flugzeugbauteile

alternative Namen

Ti-5553
Titanium 5553
Titan 5553

weitere Angaben

metastabile β-Titanlegierung

Physikalische Eigenschaften

Name	Wert	Messverfahren und -bedingungen
Dichte	4.67 g/cm³
Mechanische Eigenschaften

Streckgrenze	1000 – 1250 MPa
Zug-Elastizitätsmodul	110 GPa
Zugdehnung beim Bruch	> 5 %
Zugfestigkeit	1100 – 1400 MPa

Chemische Eigenschaften

chemische Zusammensetzung (Gewichtsprozent)

Rest

4.4 - 5.7

4 - 5.5

2.5 - 3.5

<=0.5

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Quelle

Hendl, J.; Daubner, S.; Marquardt, A.; Stepien, L.; Lopez, E.; Brückner, F.; Leyens, C. In Situ CT Tensile Testing of an Additively Manufactured and Heat-Treated Metastable ß-Titanium Alloy (Ti-5Al-5Mo-5V-3Cr). Appl. Sci. 2021, 11, 9875.
Schwab, H. Selektives Laserschmelzen der Legierung Ti-5553. Dissertation, Technische Universität Dresden, Dresden 2018

Ergänzende Materialdaten

In Situ CT Tensile Testing of an Additively Manufactured and Heat-Treated Metastable ß-Titanium Alloy (Ti-5Al-5Mo-5V-3Cr)

Additive manufacturing has been considered a suitable process for developing high-performance parts of medical or aerospace industries. The electron beam powder bed fusion process, EB-PBF, is a powder bed fusion process carried out in a vacuum, in which the parts are melted using a highly focused electron beam. The material class of metastable β-titanium alloys, and especially Ti-5Al-5Mo-5V-3Cr, show great potential for use as small and highly complex load-bearing parts. Specimens were additively manufactured with optimised process parameters and different heat treatments used in order to create tailored mechanical properties. These heat-treated specimens were analysed with regard to their microstructure (SEM) and their mechanical strength (tensile testing). Furthermore, in situ tensile tests, using a Deben CT5000 and a YXLON ff35 industrial μ-CT, were performed and failure-critical defects were detected, analysed and monitored. Experimental results indicate that, if EB-PBF-manufactured Ti-5553 is heat-treated differently, a variety of mechanical properties are possible. Regarding their fracture mechanisms, failure-critical defects can be etected at different stages of the tensile test and defect growth behaviour can be analysed.

Schlagwörter

additive manufacturing

electron beam powder bed fusion

metastable β-titanium alloy

industrial computer tomography

non-destructive evaluation

in situ tensile testing

Versuchsaufbau

industrial computer tomography, YXLON ff35 CT
in situ tensile testing of EB-PBF Ti-5553 using EL = 600 J/m, Deben CT5000
conventional tensile test of EB-PBF Ti-5553 using EL = 600 J/m, Zwick 1474 material tester, in accordance with DIN EN ISO 6892-1, elongation rate of 0.55 mm/min

Physikalische Eigenschaften

Name	Wert	Sollbereich	Bemerkung	Messverfahren und -bedingungen
Mechanische Eigenschaften

Streckgrenze	860 MPa		as-built	DIN EN ISO 6892-1, conventional tensile test
	820 MPa	817 – 823 MPa	as-built	in situ tensile test
	1360 MPa	1346 – 1374 MPa	STA	DIN EN ISO 6892-1, conventional tensile test
	860 MPa	1124 – 1208 MPa	STA	in situ tensile test
	820 MPa	873 – 903 MPa	BASCA	DIN EN ISO 6892-1, conventional tensile test
	881 MPa	879 – 883 MPa	BASCA	in situ tensile test
Zugdehnung beim Bruch	21.9 %	19 – 24.8 %	as-built	DIN EN ISO 6892-1, conventional tensile test
	1.1 %	0.9 – 1.3 %	as-built	in situ tensile test
	4.2 %	2.9 – 5.5 %	STA	DIN EN ISO 6892-1, conventional tensile test
	1.21 %	1.11 – 1.31 %	STA	in situ tensile test
	22.1 %	23.1 – 21.1 %	BASCA	DIN EN ISO 6892-1, conventional tensile test
	1.32 %	0.92 – 1.72 %	BASCA	in situ tensile test
Zugfestigkeit	887 MPa	816 – 958 MPa	as-built	DIN EN ISO 6892-1, conventional tensile test
	856 MPa	851 – 861 MPa	as-built	in situ tensile test
	1460 MPa	1439 – 1481 MPa	STA	DIN EN ISO 6892-1, conventional tensile test
	1212 MPa	1171 – 1253 MPa	STA	in situ tensile test
	971 MPa	958 – 984 MPa	BASCA	DIN EN ISO 6892-1, conventional tensile test
	943 MPa	917 – 969 MPa	BASCA	in situ tensile test

weitere Angaben

STA heat treatment, solution at 790 °C (heating rate = 10 K/min) for 1 h followed by an air quench down to room temperature and an ageing step at 500 °C (heating rate of 10 K/min) for 1 h
BASCA heat treatment, annealing at 890 °C (heating rate = 10 K/min) for 1.5 h followed by an oven cooling of 2 K/min down to the aging step at 600 °C for 8 h

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