NSUF 18-1245: Radiation response of nanostructured steels with various types of defect sinks
Radiation response of nanostructured steels with various types of defect sinks PI: Xinghang Zhang; Co-PI: Jin Li, Zhongxia Shang, Cuncai Fan Institution: School of Materials Engineering, Purdue University, Email: [email protected], Phone: (765) 494-1641 Type of project: heavy ion irradiation beam line ? IVEM NSUF Technical Lead: Dr. Meimei Li, and Dr. Mark Kirk NSUF facility: Intermediate voltage electron microscopy facility, Argonne National Laboratory
Technical Abstract The main objective of this RTE proposal is to use in situ radiation technique to understand the fundamental mechanism of enhanced radiation tolerance in steels with nanotwins, nanograins or layer interfaces. The goal is to accelerate the design of advanced nanostructured steels for the next generation nuclear reactors. The systems to be studied are (1) twinning induced plasticity (TWIP) steel, (2) ultrafine grained (UFG) T91 ferritic/martensitic (F/M) steel, processed by severe plastic deformation, and (3) nanostructured stainless steel multilayers.
Novelty. Introduction of nanostructures is promising to significantly improve radiation tolerance of structural materials for nuclear reactors. Previous ex situ irradiation studies by the PI’s group showed that UFG 304L SS, T91 F/M steel and nanotwinned Ag have enhanced irradiation resistance due to grain refinement and fine twins. TWIP steels also contain high-density deformation twins. However, the irradiation tolerance of TWIP steels has not been investigated. Moreover, the PI investigated the mechanical behaviors and thermal stability of Cu/SS multilayers, but the irradiation response of steel multilayers remains unclear. In situ irradiation technique will allow us to investigate the interaction of irradiation induced defects with defect sinks, including grain boundaries, and twin boundaries, and layer interfaces in nanostructured steels.
Major tasks in this project include the 1) investigation of size dependent void swelling; 2) examination of defect denuded zone and nanostructure stability at elevated temperatures.
Expected period of performance: January-September 2018
Additional Info
| Field | Value |
|---|---|
| Abstract | Radiation response of nanostructured steels with various types of defect sinks PI: Xinghang Zhang; Co-PI: Jin Li, Zhongxia Shang, Cuncai Fan Institution: School of Materials Engineering, Purdue University, Email: [email protected], Phone: (765) 494-1641 Type of project: heavy ion irradiation beam line ? IVEM NSUF Technical Lead: Dr. Meimei Li, and Dr. Mark Kirk NSUF facility: Intermediate voltage electron microscopy facility, Argonne National Laboratory Technical Abstract The main objective of this RTE proposal is to use in situ radiation technique to understand the fundamental mechanism of enhanced radiation tolerance in steels with nanotwins, nanograins or layer interfaces. The goal is to accelerate the design of advanced nanostructured steels for the next generation nuclear reactors. The systems to be studied are (1) twinning induced plasticity (TWIP) steel, (2) ultrafine grained (UFG) T91 ferritic/martensitic (F/M) steel, processed by severe plastic deformation, and (3) nanostructured stainless steel multilayers. Novelty. Introduction of nanostructures is promising to significantly improve radiation tolerance of structural materials for nuclear reactors. Previous ex situ irradiation studies by the PI’s group showed that UFG 304L SS, T91 F/M steel and nanotwinned Ag have enhanced irradiation resistance due to grain refinement and fine twins. TWIP steels also contain high-density deformation twins. However, the irradiation tolerance of TWIP steels has not been investigated. Moreover, the PI investigated the mechanical behaviors and thermal stability of Cu/SS multilayers, but the irradiation response of steel multilayers remains unclear. In situ irradiation technique will allow us to investigate the interaction of irradiation induced defects with defect sinks, including grain boundaries, and twin boundaries, and layer interfaces in nanostructured steels. Major tasks in this project include the 1) investigation of size dependent void swelling; 2) examination of defect denuded zone and nanostructure stability at elevated temperatures. Expected period of performance: January-September 2018 |
| Award Announced Date | 2018-02-01T14:17:55.423 |
| Awarded Institution | None |
| Facility | None |
| Facility Tech Lead | Wei-Ying Chen |
| Irradiation Facility | None |
| PI | Xinghang Zhang |
| PI Email | [email protected] |
| Project Type | RTE |
| RTE Number | 1245 |