Fracture and fatigue resistance of Mo-Si-B alloys for ultrahigh-temperature structural applications
Journal Article
·
· Scripta Materialia
OSTI ID:836664
Fracture and fatigue-crack growth properties are examined for a series of Mo-Mo3Si-Mo5SiB2 containing alloys, which utilize a continuous a-Mo matrix to achieve unprecedented room-temperature fracture resistance (>20 MPaAm). Mechanistically, these properties are explained in terms of toughening by crack trapping and crack bridging by the more ductile a-Mo phase.
- Research Organization:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Director. Office of Science. Office of Basic Energy Sciences. Division of Materials Sciences and Engineering Contract DE-AC03-76SF00098, Office of Fossil Energy. Advanced Research Materials Program Contract DE-AC05-00OR22725 (US)
- DOE Contract Number:
- AC03-76SF00098
- OSTI ID:
- 836664
- Report Number(s):
- LBNL-53814; R&D Project: 511906; TRN: US200504%%227
- Journal Information:
- Scripta Materialia, Vol. 50, Issue 4; Other Information: Submitted to Scripta Materialia: Volume 50, No.4; Journal Publication Date: 02/2004; PBD: 29 Aug 2003
- Country of Publication:
- United States
- Language:
- English
Similar Records
Role of Microstructure in Promoting Fracture and Fatigue Resistance in Mo-Si-B Alloys
Fracture and fatigue properties of Mo-Mo{sub 3}Si-Mo{sub 5}SiB{sub 2} refractory intermetallic alloys at ambient to elevated temperatures (25-1300 degrees Centigrade)
Ductile-reinforcement toughening in [gamma]-TiAl intermetallic-matrix composites: Effects on fracture toughness and fatigue-crack propagation resistance
Conference
·
Fri Apr 01 00:00:00 EST 2005
·
OSTI ID:836664
Fracture and fatigue properties of Mo-Mo{sub 3}Si-Mo{sub 5}SiB{sub 2} refractory intermetallic alloys at ambient to elevated temperatures (25-1300 degrees Centigrade)
Journal Article
·
Thu Aug 01 00:00:00 EDT 2002
· Metallurgical and Materials Transactions A
·
OSTI ID:836664
Ductile-reinforcement toughening in [gamma]-TiAl intermetallic-matrix composites: Effects on fracture toughness and fatigue-crack propagation resistance
Journal Article
·
Tue Mar 01 00:00:00 EST 1994
· Acta Metallurgica et Materialia; (United States)
·
OSTI ID:836664