バネ式マルチ・クリープ破断試験機によるクリープ破断試験について

概要

論文の詳細を見る
A 48- or 72-pointed creep-rupture tester has been developed, of a sort far more multiple pointed than conventional testers. This ls of a spring loaded type in which displacement of spring by elongation of specimens is manually adjustable. Actually the integrated accuracy of test results is identical to, or even better than, those by conventional single type testers, due to its good temperature distribution within the furnace in spite of the fact that there is some fluctuation of load caused by manual adjustments. These results were confirmed by testing five specimens for from 200 to 4000 hrs. each under its respective testing condition of carbon, Cr-Mo and 18-8 Ti steels. The testers can be handled much more easily in supplying specimens and taking them off as well as in checking the thermocouples. etc, than the conventional testers. This type of creep-rupture testers is best suited for test lasting for more than 1000 hrs, and makes is possible to reduce required installation space and minimize running cost to a several tenth as much per specimen.
社団法人日本材料学会の論文
1970-03-15