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Cr-1Mo SteelS.Kanoh*; K.Nakay*; S.Mizob*; M.Namek*; Atsumo, Hideo*
PNC TN951 75-15, 53 Pages, 1976/03
A series wear tests in sodium have been carried out to develop and screen friction and wear resistant materials for sliding components of the sodium cooled reactor. The present study was carried out on various combinations of Stellite No.1, colmonoy No.6, Inconel 718, Hastelloy C and 2 1/4Cr-1Mo Steel. The tests yielded the following results. (1) Colmonoy No.6 was the only material that descreased in hardness after tested. The higher the temperature was, the lower became the static friction coefficient (
s) of Colmonoy No.6 alone. (2) The kinetic friction coefficient (k) of Stellite No.1 vs. Stellite No.1 was as high as 0.5, but it became lower (0.12) in case the mating material was Colmonoy No.6. The k-value of Colmonoy No.6 vs. Colmonoy No.6 was as low as 0.2. These material combinations scacerly wore. (3) The k-value of Inconel 718 vs. Inconel 718 was as low as 0.3, but this combination wore under load more than 300kg. (4) The k-value of Hastelloy C vs. Hast
S.Mizno*; Kano, Shigeki; M.Namek*; T.Owada*; Atsumo, Hideo*
PNC TN951 74-12, 47 Pages, 1975/01
The experimental was conducted from October 1 to December 21, 1973 for the purpose of comparing the self-welding behavior of various kinds of material in high temperature sodium, thus acquiring the basic know-ledge of their self-welding phenomena. In our previous report (SN941 730-32), we have take up the subject self-welding between hard Cr platting and SUS316 (equivalent to AISI Type 316 Stainless Steel). Thistime, however, we have undertaken the tests of carbide materials, refractory materials such as molybdenum and tungsten well as stellite No.6, nickel, nichrome, etc. The tests have revealed the following results: 1.Chrome-carbide (Detonation Gun-coated) has been a good self-welded residence. But, the carbide with the content of tungsten showed a strong tendency the self-welding. 2.Tungsten and molybdenum had strongly residence agaibst self-welding effective as material. 3. Stellite No.6 combined with SUS316 showed a tendency to self-welding. 4.Nickel and Nichrom
