Examination of formability to seamless tubes on Ni-Cr-W superalloy
Creators
- 1. Japan Atomic Energy Research Inst., Tokai, Ibaraki (Japan). Tokai Research Establishment
Description
Research and development have been carried out on the new superalloys as a component material for process heating high-temperature gas-cooled reactors with coolant outlet temperatures of around 1000degC, and the optimum chemical composition has already been proposed. The program had set some targets. One of them is formability to 32-mm-outer dia., 4- to 5-mm-thick, 7-m-long seamless tubes. Hence formability and solution treatment conditions were examined by producing seamless tubes from 2000 kg scale ingot of the proposed optimum Ni-Cr-W superalloy. Based on the obtained results, the following conclusions are drawn: (1) Newly developed Ni-Cr-W superalloy possesses sufficient formability to seamless tubes in both hot- and cold-workability. (2) The grain size of the seamless tubes can be adjusted in a range of ASTM No.2 to 3 by solution treated at 1230 to 1240degC. (author)
Availability note (English)
MF available from INIS under the Report Number.Files
24025885.pdf
Files
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Additional details
Publishing Information
- Imprint Pagination
- 138 p.
- Report number
- JAERI-M--92-148
INIS
- Country of Publication
- Japan
- Country of Input or Organization
- Japan
- INIS RN
- 24025885
- Subject category
- S36: MATERIALS SCIENCE; S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
- Descriptors DEI
- CHROMIUM ALLOYS; COLD WORKING; HEAT EXCHANGERS; HEAT RESISTING ALLOYS; HEAT TRANSFER; HOT WORKING; HTGR TYPE REACTORS; NICKEL BASE ALLOYS; PIPES; REACTOR MATERIALS; TUNGSTEN ALLOYS
- Descriptors DEC
- ALLOYS; ENERGY TRANSFER; FABRICATION; GAS COOLED REACTORS; GRAPHITE MODERATED REACTORS; MATERIALS; MATERIALS WORKING; NICKEL ALLOYS; REACTORS