Microstructural Examination of Ni-ion Irradiated Fe-Ni-Cr Alloys Followed to Micro-zone Deformation
نویسندگان
چکیده
Examination of deformation microstructures induced by micro-indentation technique by means of transmission electron microscopy following an MV range metallic ion irradiation was performed in order to study the influence of irradiation-produced microstructural defects on plastic deformation behavior of materials. In this work, specimens of an Fe-Cr-Ni austenitic model ternary alloy before and after irradiation with 4 MeV Ni ions at 723K were indentation-tested at loads as low as 9.8 mN using an instrumented micro-indentation testing system. The dislocation microstructures of the specimens’ regions beneath the indents were successfully examined with a transmission electron microscopy following a cross-sectional thin film processing with a focused ion beam (FIB) processing system. This paper describes the experimental procedure developed in this study and the results from the first series of the experiments.
منابع مشابه
The Effect of Nickel Increasing and Aluminum Addition on Sulfidation Resistance of Fe-Ni-Cr Alloys (TECHNICAL NOTE)
In this research the effects of; increasing the amount of nickel and adding aluminum to create and prolong sulfidation resistance of Fe-Ni-Cr alloys have been investigated. Sulfidation tests were carried out at 1100°C in S/O bearing atmosphere. Prior to the tests, the specimens were annealed in argon at 1250°C for 8 hrs. Weight changes were measured and corroded deposits were analyzed byscannin...
متن کاملThe Dislocation-Enhanced Finkelshtain-Rosin Effect (DEFRE) in Austenitic Steels
A systematic study of the influence of plastic deformation and low temperature ageing on the carbon Dislocation Enhanced Finkelshtain Rosin Effect (DEFREIC) in austenitic alloys of Fe-Ni, Fe-Ni-MO, Fe-Mn-A1 and Fe-Cr-Ni systems with different carbon content is reported. The experiments prove that after plastic deformation at room temperature the FR effect is transformed into DEFREIC. nith both ...
متن کاملبررسی و مقایسه زیستسازگاری آلیاژ مینالوکس و آلیاژ مشابه خارجی (In-vitro)
Statement of Problem: One of newly presented base metal alloys (Minalux) is produced according to VeraBond2 alloy (Ni- Cr base) composition. Several studies showed that, cytotoxicity of base metal alloys can be occurred due to corrosion and element release. Purpose: This study evaluated the biocompatibility of these two base metal alloys in three steps: as cast, after polishing and after porcel...
متن کاملThe effect of rare-earth element additions on microstructural properties and irradiation behavior of an Fe-Ni-Cr alloy for LMFBR and fusion reactor applications
متن کامل
Development of Metallic Hot Gas Filters
Successful development of metallic filters with high temperature oxidation/corrosion resistance for fly ash capture is a key to enabling advanced coal combustion and power generation technologies. Compared to ceramic filters, metallic filters can offer increased resistance to impact and thermal fatigue, greatly improving filter reliability. A beneficial metallic filter structure, composed of a ...
متن کامل