著者
木村 毅一
出版者
公益社団法人 日本材料学会
雑誌
材料試験 (ISSN:03727971)
巻号頁・発行日
vol.5, no.39, pp.770-773, 1956-12-15 (Released:2009-05-26)
参考文献数
36

2 0 0 0 OA 乾板材料

著者
及川 善一郎
出版者
公益社団法人 日本材料学会
雑誌
材料試験 (ISSN:03727971)
巻号頁・発行日
vol.6, no.50, pp.709-716, 1957-11-15 (Released:2009-05-26)
参考文献数
8

1 0 0 0 OA 減速材と重水

著者
高松 武一郎
出版者
公益社団法人 日本材料学会
雑誌
材料試験 (ISSN:03727971)
巻号頁・発行日
vol.5, no.39, pp.718-725, 1956-12-15 (Released:2009-05-26)

1 0 0 0 OA 螢光塗料

著者
滝沢 達児
出版者
公益社団法人 日本材料学会
雑誌
材料試験 (ISSN:03727971)
巻号頁・発行日
vol.8, no.64, pp.47-52, 1959-01-15 (Released:2009-05-26)
参考文献数
5

1 0 0 0 OA 木材接着剤

著者
新保 正樹
出版者
公益社団法人 日本材料学会
雑誌
材料試験 (ISSN:03727971)
巻号頁・発行日
vol.7, no.60, pp.474-480, 1958-09-15 (Released:2009-05-26)
参考文献数
11
著者
財満 鎭雄
出版者
公益社団法人 日本材料学会
雑誌
材料試験 (ISSN:03727971)
巻号頁・発行日
vol.5, no.37, pp.584-586, 1956-10-15 (Released:2009-05-26)
参考文献数
4
被引用文献数
1 1

The measuring error of the depression has a large influence upon the hardness which is calculated by the area of depression.The author studied the surface indented by Brinel, Vickers and Knoop depressions using Ogoshi Surface Roughness Tester, and found that for the same metal the piling-up was almost constant regardless of the applied weight and the measuring error, i. e. the error of hardness, differs with the metal. It was also found that there was a slight piling-up in the diagonal of Vickers depression but no piling up in the major diagonal of Knoop depression.
著者
菅野 蓑作
出版者
公益社団法人 日本材料学会
雑誌
材料試験 (ISSN:03727971)
巻号頁・発行日
vol.10, no.98, pp.850-854, 1961-11-15 (Released:2009-05-26)
参考文献数
20
被引用文献数
1 1
著者
上田 太郎 朝倉 健二
出版者
公益社団法人 日本材料学会
雑誌
材料試験 (ISSN:03727971)
巻号頁・発行日
vol.9, no.78, pp.192-199, 1960

This investigation was planned for researching the effect of the repeated stress upon the longitudinal residual stress existing in the cold drawn carbon steel wire. For the specimen, 0.65% carbon steel wires drawn with 60% and 80% reductions were used, and the diameter of these wires was 1.3mm.<BR>For the measurement of the longitudinal residual stresses existing in these fine steel wires, the present writers adopted the mechanical method and electro-magnetic method.<BR>Hunter fatigue testing machine was used in this investigation, and from S-N curves of these wires the fatigue limit stress and three stresses over the fatigue limit were chosen as the repeated stress to research the behavior of residual stress. The fatigue test specimens were taken out from the fatigue testing machine at 10<SUP>7</SUP> and 10<SUP>6</SUP> cycles for the fatigue limit stress and at the number of cycle just before the break down cycle for each stress over the fatigue limit, and then the specimens for measurement of residual stress were cut out from the middle part of these fatigue test specimens. The distributions of longitudinal residual stresses of these specimens subjected to the repeated stresses were measured and those were compared with that of the standard specimen not subjected to the repeated stress.<BR>From the results obtained by this investigation, it was made clear that if the longitudinal tensile residual stress existing in the outer part of the wire was about 20-30kg/mm<SUP>2</SUP>, the distribution of longitudinal residual stress of the cold drawn steel wire was little affected by the repeated stress under rotating bending over the fatigue limit, and that which is equal to the fatigue limit, either.
著者
渡辺 孝章
出版者
公益社団法人 日本材料学会
雑誌
材料試験 (ISSN:03727971)
巻号頁・発行日
vol.11, no.105, pp.352-357, 1962-06-15 (Released:2009-05-26)
参考文献数
21
被引用文献数
1 1
著者
小原 二郎
出版者
公益社団法人 日本材料学会
雑誌
材料試験 (ISSN:03727971)
巻号頁・発行日
vol.10, no.98, pp.894-899, 1961-11-15 (Released:2009-05-26)
被引用文献数
2 2
著者
木村 恵雄
出版者
公益社団法人 日本材料学会
雑誌
材料試験 (ISSN:03727971)
巻号頁・発行日
vol.11, no.111, pp.781-785, 1962-12-15 (Released:2009-05-26)
参考文献数
1

NIPPON ROCLA PIPE CO. has been producing noncylinder prestressed concrete pipes since the fall of 1961. One of the products which has 1200mm inner diameter and is designed for the inner pressure of 13.0kg/cm2 was tested hydrostatically and under the external load.The results of test obtained are as follows:(1) Under the hydrostatic pressure up to 12.0kg/cm2, there was no leakage on outer surface of the pipe and at rubber joints.As the capacity of the bulkhead of the machine was not sufficiently large, the test up to 13.0kg/cm2 pressure was given up.(2) Under the external load up to 8.25 tons per meter (total load of 33.0 tons), could no visible crack was found at any point of the pipe.From analyses about the stress and measured strain on concrete surface at the end of the pipe, the prestress in the core concrete was supposed to be as much as the designed value, and the flexural strength of the concrete to be sufficient.
著者
篠田 軍治
出版者
公益社団法人 日本材料学会
雑誌
材料試験 (ISSN:03727971)
巻号頁・発行日
vol.5, no.39, pp.738-742, 1956-12-15 (Released:2009-05-26)
参考文献数
14
著者
奥田 進
出版者
公益社団法人 日本材料学会
雑誌
材料試験 (ISSN:03727971)
巻号頁・発行日
vol.11, no.109, pp.581-587, 1962-10-15 (Released:2009-05-26)
参考文献数
25

1 0 0 0 OA 規格紹介

出版者
公益社団法人 日本材料学会
雑誌
材料試験 (ISSN:03727971)
巻号頁・発行日
vol.2, no.7, pp.305-316, 1953-07-01 (Released:2009-05-26)
著者
西原 利夫 覚前 睦夫 中村 寛
出版者
公益社団法人 日本材料学会
雑誌
材料試験 (ISSN:03727971)
巻号頁・発行日
vol.4, no.22, pp.206-214, 1955-05-01 (Released:2009-05-26)
参考文献数
2

This paper deals with the experimental research on the effects of change of wire drawing condition on hardness distribution over the section of drawn wire.Using a Micro-Vickers hardness tester, we tried to investigate the hardness distribution over the cross section of three kinds of carbon steel wires and a brass wire, drawn under several kinds of drawing conditions, as well as the gradual change of hardness over the longitudinal section of carbon steel wires under plastic deformation with half drawn specimen.As the results we have make it clear that the wire with uniform deformation as possible will be obtained by following methods of drawing:(1) with the die of larger radius of curvature of drawing surface than with the die of smaller radius, (2) under high reduction of diameter than low reduction.