Evaluation of cost reduction method for manufacturing ODS Ferritic claddings

Fujiwara, Masayuki; Mizuta, Shunji;

JNC TN9400 2000-050, 19 Pages, 2000/04

JNC-TN9400-2000-050.pdf:0.82MB

For evaluating the fast reactor system technology, it is important to evaluate the practical feasibility of ODS ferritic cdaddings, which is the most promising matelials to attain the goal of high coolant temperature and more than 150 GWd/t. Based on the results of their technology development, mass production process with highly economically benefit as well as manufacturing cost estimation of ODS ferritic claddings were preliminarily conducted. From the view point of future utility scale, the cost for manufacturig mother tubes has a dominant factor in the total manufacturing cost. The method to reduce the cost of mother tube manufacturing was also preliminarily investigated.

Mass production technology development of 9Cr-ODS steel; Development of Prototype large ATTRItor for mass production of ODS steel (PATTRIODS) and test production

Oka, Hiroshi; Tanno, Takashi; Yano, Yasuhide; Otsuka, Satoshi; Kaito, Takeji; Tachi, Yoshiaki

no journal, , 

As part of the development of mass production technology for ODS steel cladding tubes, a large attritor ball-mill PATTRIODS (Prototype large ATTRItor for mass production of ODS steel) was developed, which is a mechanical alloying device for mass production. The powder amount of throughput of PATTRIODS is 30 kg, which is three times the conventional small type attritor. In order to control the amount of oxygen during mechanical alloying, inert gas replacement capability for the pulverization tank and the powder collecting container is adopted. The production test of ODS steel using PATTRIODS revealed that PATTRIODS had the same level of oxygen controllability as the existing small type attritor.