Developing improved structural materials using proton irradiation as a rapid analysis tool.

[摘要] The overall goal of the project is to develop austenitic stainless steel structural materials with enhanced radiation resistance. For this project, the term radiation resistance is being used to describe resistance to dimensional changes caused by void swelling and resistance to material failures caused by irradiation assisted stress corrosion cracking (IASCC). IASCC has been linked to both hardening and changes in grain boundary composition during irradiation. To achieve such enhanced radiation resistance, three experimental paths have been chosen: bulk composition engineering, grain boundary composition engineering, and grain boundary structural engineering. The program involves the use of high-energy proton irradiation as a rapid screening tool to systematically test combinations of alloy composition and thermomechanical treatment conditions to isolate the controlling mechanisms and develop an understanding of how these factors can be engineered to improve material properties.

[发布日期] 2003-10-07 [发布机构] Argonne National Laboratory

[关键词] Hardening;Building Materials;Alloys;Irradiation;Swelling