Initiation and propagation of short fatigue cracks in forged Ti6Al4V

Procedia Engineering

Volumn 2, Issue 1, 2010, Pages 931-940

  Knobbe, Helge ^a   Köster, Philipp ^a   Christ, Hans Jürgen ^a   Fritzen, Claus Peter ^a   Riedler, Martin ^b  

^a UNIVERSITY OF SIEGEN   (Germany)

^b Bohler Schmiedetechnik GmbH and Co KG   (Austria)

Author keywords

Crack initiation; Crack propagation; EBSD; Fatigue; Titanium alloys

Indexed keywords

BASAL SLIP; COMMAND SIGNAL; COMMON FEATURES; CRACK DEFLECTIONS; CRACK GROWTH RATES; CRACK PATHS; CRYSTALLOGRAPHIC ORIENTATIONS; EBSD; FATIGUE BEHAVIOUR; GLIDE PLANES; INITIATION AND PROPAGATION; INITIATION SITES; MICROSTRUCTURAL FEATURES; PRISMATIC SLIP; R RATIO; SCHMID FACTORS; SEM; SERVOHYDRAULIC; SHORT CRACK PROPAGATION; SHORT FATIGUE CRACKS; SLIP PLANE; STRESS LEVELS; TI-6AL-4V; TI-6AL-4V ALLOY; TWIST ANGLES;

ALLOYS; CRACK INITIATION; CRACK PROPAGATION; DATA FLOW ANALYSIS; MICROSTRUCTURAL EVOLUTION; STRESS CORROSION CRACKING; TEST FACILITIES; TITANIUM; TITANIUM ALLOYS;

CRACKS;

EID: 77954136094     PISSN: None     EISSN: 18777058     Source Type: Conference Proceeding    
DOI: 10.1016/j.proeng.2010.03.101     Document Type: Conference Paper

References (21)

1. Jackson M, Dring K. A review of advances in processing and metallurgy of titanium alloys. Mat Sci Tech 2006;7:881-887
2. Boyer RR. An overview on the use of titanium in aerospace industry. Mat Sci Eng A 1996;213:103-114
3. Boyer RR, Briggs RD. Presentation - The Boeing 7E7: an update. Proc 16th Conf on advanced aerospace materials and processes 2005.
4. Paris PC, Gomez MP, Anderson WE. A rational analytic theory of fatigue. Trend Eng 1961;13:9-14.
5. Basquin OH. The exponential law of endurance tests. Proc Annual Meeting ASTM 1919;10:625-634
6. Coffin LF. Fatigue at high temperatures. ASTM STP520 1973;744-782.
7. Manson SS. Fatigue: A complex subject-some simple approximations. J Exp Mech 1965;5:193-226.
8. Künkler B, Düber O, Köster P, Krupp U, Fritzen CP, Christ HJ. Modelling of short crack propagation - transition from stage I to stage II. Eng Frac Mech 2008;75:715-725
9. Tokaji K, Takafiji S, Ohya K, Kato Y, Mori K. Fatigue behavior of beta Ti-22V-4Al alloy subjected to surface-microstructural modification. J Mat Sci 2003;38:1153-1159
10. Köster P, Knobbe H, Fritzen CP, Christ HJ, Riedler M. Simulation of Stage I-Short Crack Propagation in Forged Ti6Al4V. Proc Eng 2010; this issue.
11. Britton TB, Birosca S, Preuss M, Wilkinson AJ. Electron backscatter diffraction study of dislocation content of a macrozone in hot- rolled Ti-6Al-4V alloy. Scripta Mater 2010;62:639-642
12. Hall EO. The deformation and aging of mild steel: II. characteristica of the Lüders deformation. Proc Phys Soc Lond B 1951;64:747-753
13. Petch NJ. The cleavage strength of polycrystals. Iron Steel Inst B 1953;174:25-32.
14. Chan KS. Changes in fatigue life mechanism due to soft grains and hard particles. Int J Fat 2010;32:526-534
15. Zhang YH, Edwards L. On the blocking effect of grain boundaries on small crystallographic fatigue crack growth. Mater Sci Eng A 1994;188:121-131
16. Zhai T, Wilkinson AJ, Martin JW. A crystallographic mechanism for fatigue crack propagation through grain boundaries. Acta Mater 2000;48:4917-4925
17. Zhang ZF, Wang ZG. Fatigue-cracking characteristics of a copper bicrystal when slip bands transfer through the grain boundary. Mater Sci Eng A 2003;343:308-317
18. Golden PJ, John R, Porter III WJ. Variability in room temperature fatigue life of alpha + beta processed Ti-6Al-4V. Int J Fatigue 2009;31:1764-1770
19. Bridier F, Villechaise P, Mendez J. Slip and fatigue crack formation processes in an titanium alloy in relation to crystallographic texture on different scales. Acta Mater 2008;56:3951-3962
20. Oberwinkler B, Riedler M, Eichlseder, W. Importance of local microstructure for damage tolerant light weight design of Ti-6Al-4V forgings. Int J Fatigue 2010;32:808-814
21. Zaefferer S. A study of active deformation systems in titanium alloys: dependence on alloy composition and correlation with deformation texture. Mat Sci Eng A 2003;344:20-30.