高マンガン鋼の摩耗試験(第3報) : マンガン転てつ器における摩耗

概要

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In order to find out the defacement prevention effect of the material when it is used for points of the railway, the author conducted a test, using an Amsler-type abrasion testing machine, at slip velocities of 0〜15 cm/sec, and under contact pressures of 50〜90 kg/mm^2. The test piece of tyre is about 0.7 %C standard structure steel, and the other material of high manganese steel and chrome manganese steel are from 1050℃ water-toughening. The followings are the findings resulted from the present test : (1) Hardness of high manganese steel goes up to fixed extent at the beginning of its usage, however, anti-wearing charactor can not be expected to increase together with this increase of its hardness. (2) Satisfactory effect of wear proofing can hardly be expected in sliding motion between C-steel and high manganese steel due to sliding friction. (3) Chrome manganese steel, which somewhat covers the effects of high manganese steel, must be used carefully in some cases, because of its limited application. (4) Test specimens, selected and prepared on the basic of field knowledge and experience so that they might be suited to actual field conditions as much as possible, were used in the laboratory experiments. And the results of this case prove to accord precisely with the data in the actual field of defacement condition.
社団法人日本材料学会の論文
1961-04-15