Thesis
Design of an instrumented micro indentation system
Washington State University
Master of Science (MS), Washington State University
2011
Handle:
https://hdl.handle.net/2376/100538
Abstract
Materials exposed to radiation form defects that lead to increased yield strength, decreased ductility and increased strain hardening, which are all factors in the process of radiation embrittlement. For future reactor designs that require materials to withstand more extreme conditions due to efficiency requirements, it is desirable to have a reasonably fast and cost effect method of evaluating candidate materials for use in reactor structural design or fuel cladding. Two properties useful for evaluating post irradiation specimens are hardness for more ductile materials and toughness for more brittle materials, which can both be extracted with an instrumented indenter. Sample preparation from irradiated materials can be very expensive and testing around these materials also requires safety precaution such as a glove box. To meet these challenges an instrumented micro indenter fitted with optics and small enough to fit through a standard glove box door was designed with cost effective specimen production and two interchangeable conical indenters. The instrument design and validation tests of hardness and indentation fracture toughness are described in this thesis.
Metrics
Details
- Title
- Design of an instrumented micro indentation system
- Creators
- Nichole Elizabeth Falk
- Contributors
- David F. Bahr (Degree Supervisor)
- Awarding Institution
- Washington State University
- Academic Unit
- Mechanical and Materials Engineering, School of
- Theses and Dissertations
- Master of Science (MS), Washington State University
- Publisher
- Washington State University; Pullman, Wash. :
- Identifiers
- 99900525192001842
- Language
- English
- Resource Type
- Thesis