Silicon nitride ceramics doped with rare-earth oxides exhibit excellent hardness, toughness, and strength at elevated temperatures making them attractive materials for replacing cemented carbides in a variety of manufacturing applications such as cutting and rolling tools. One recent example is the application of rolling of high strength alloy wires from steels and nickel-based super-alloys where cemented carbide rolls suffer wear and thermal fatigue cracking, leading to a degradation of wire quality. [1] Furthermore, it has been shown that under moderate loading silicon nitride rolls can give >10 times longer life and improved wire surface quality. [1] However, it has also been shown that the rolls can suffer fatigue failure at higher loadings, for example when rolling wires with high deformation resistance such as the super alloy wire Nicrofer S7020. [1–2] Accordingly the aim of this study is the develop a design tool for predicting the fatigue failure of silicon nitride ceramics. The silicon nitrides with favorable mechanical properties have microstructures with elongated β-phase grains and a glassy intergranular film. The weak film encourages intergranular fracture allowing the formation of grain bridges across the crack wake which helps to reduce the stress intensity felt at the crack tip, Ktip. [3]
Skip Nav Destination
ASME 2011 International Manufacturing Science and Engineering Conference
June 13–17, 2011
Corvallis, Oregon, USA
Conference Sponsors:
- Manufacturing Engineering Division
ISBN:
978-0-7918-4431-1
PROCEEDINGS PAPER
Fatigue Behavior, Bridging Stresses, and Fatigue Reliability in Silicon Nitride Ceramics Available to Purchase
Rawley B. Greene,
Rawley B. Greene
Oregon State University, Corvallis, OR
Search for other works by this author on:
Jamie J. Kruzic
Jamie J. Kruzic
Oregon State University, Corvallis, OR
Search for other works by this author on:
Rawley B. Greene
Oregon State University, Corvallis, OR
Jamie J. Kruzic
Oregon State University, Corvallis, OR
Paper No:
MSEC2011-50056, pp. 65-68; 4 pages
Published Online:
September 14, 2011
Citation
Greene, RB, & Kruzic, JJ. "Fatigue Behavior, Bridging Stresses, and Fatigue Reliability in Silicon Nitride Ceramics." Proceedings of the ASME 2011 International Manufacturing Science and Engineering Conference. ASME 2011 International Manufacturing Science and Engineering Conference, Volume 2. Corvallis, Oregon, USA. June 13–17, 2011. pp. 65-68. ASME. https://doi.org/10.1115/MSEC2011-50056
Download citation file:
8
Views
Related Proceedings Papers
Fatigue Test for Thick Wire Bonds
IDETC-CIE2014
Related Articles
Cryogenic Tensile, Fatigue, and Fracture Parameters for a Solution-Annealed 18 Percent Nickel Maraging Steel
J. Eng. Mater. Technol (April,1978)
Applications of Probabilistic Fracture Mechanics to Offshore Structures
Appl. Mech. Rev (February,1988)
Nonlocal Cyclic Life Prediction for Gas Turbine Components With
Sharply Notched Geometries
J. Eng. Gas Turbines Power (January,2008)
Related Chapters
On the Evaluation of Thermal and Mechanical Factors in Low-Speed Sliding
Tribology of Mechanical Systems: A Guide to Present and Future Technologies
Estimation of K Ic from Slow Bend Precracked Charpy Specimen Strength Ratios
Developments in Fracture Mechanics Test Methods Standardization
Surface Analysis and Tools
Tribology of Mechanical Systems: A Guide to Present and Future Technologies