巻号一覧
32 巻, 1 号
選択された号の論文の9件中1～9を表示しています
- |<
- <
- 1
- >
- >|
-
中山 一郎1982 年 32 巻 1 号 p. 1-2
発行日: 1982/01/30
公開日: 2008/07/23
ジャーナル フリーPDF形式でダウンロード (216K) -
財満 鎮雄, 飯尾 政次, 黄 盈智, 新井 浩三, 佃 市三1982 年 32 巻 1 号 p. 3-7
発行日: 1982/01/30
公開日: 2008/11/05
ジャーナル フリーThe cutting resistance, cutting temperature, cut surface roughness, tool wear, chip treating and others of free cutting aluminum alloys 2011-T3 and 2011-T8, a high strength alloy 2017-T4, 5056 alloys having different compositions and newly developed free cutting alloys G67-T6 and G67-T8 were examined. Those of a free cutting brass and a free cutting steel were also tested for comparison. 2011 alloys are excellent in machinabilities especially in the tool flank wear and the chip treating. G67 alloys have similar turning machinabilities as 2011. All the 5056 alloys have nearly the same turning machinabilities a little better than 2017 having poor machinabilities. Both the turning and drilling machinabilities show nearly the same tendencies.抄録全体を表示PDF形式でダウンロード (992K) -
東 健司, 大西 忠一, 小松 啓治, 中谷 義三1982 年 32 巻 1 号 p. 8-13
発行日: 1982/01/30
公開日: 2008/11/05
ジャーナル フリーThe temperature dependence of fracture toughness of 5083-O and 5083-T were estimated by measuring the critical crack tip opening displacement (CTODc) derived from stretched zone analysis. These alloys have an excellent property in a static tensile test and show appreciable low temperature embrittlement in a dynamictest. CTODc significantly depends on temperature. The CTODc values of 5083-O at room temperature and -196°C are 70 and 21μm respectively and those of 5083-T 50 and 18μm respectively A proportional relation is found between the stretched zone width and stretched zone height. The crack tip plastic blunting is about 68°. A laminated fracture is observed in a low temperature range and is enhanced by an aging treatment. An occurance of laminated fracture is attributed to a triaxial constraint at a crack tip and to a laminated distribution of undissolved particles and precipitates.抄録全体を表示PDF形式でダウンロード (1482K) -
山田 始, 田中 他喜男1982 年 32 巻 1 号 p. 14-19
発行日: 1982/01/30
公開日: 2008/07/23
ジャーナル フリーEffects of additions of yttrium 0.04 to 0.2% and a commercially available unseparated mixture of yttrium group on the recrystallization temperature of Al-Zr alloys containing 0.1 to 0.3%Zr were examined. Minor additions of yttrium and mixture of yttrium group to the Al-Zr alloys have a considerable effect to elevate the recrystallization temperature. The effect is intensified by precipitation treatment. It is the most remarkable in the Al-Zr alloy containing about 0.2%Zr, but is not so remarkable in the dilute alloys such as Al-0.1%Zr alloy. Such an effect of yttrium and its group is explained by an enhancement of precipitation of finely dispersed Al3Zr particles during the precipitation treatment of Al-Zr supersaturated solid solution.抄録全体を表示PDF形式でダウンロード (725K) -
権田 峰夫, 溝内 政文, 安達 充1982 年 32 巻 1 号 p. 20-25
発行日: 1982/01/30
公開日: 2008/07/23
ジャーナル フリーThe electrical conductivity of hyper-eutectic Al-Si alloys into which various combinations of P and Ca had been added to control the primary Si size was measured by means of an eddy current method. The electrical conductivity of the alloys is directly proportional to the primary Si size. The electrical conductivity measurement is applicable as a rapid routine test to estimate refinement of the primary Si size. The change in electrical conductivity is attributed to the local changes of magnetic flux density due to difference in the primary Si size on the bases of differential thermal analyses and lattice constant measurements.抄録全体を表示PDF形式でダウンロード (949K) -
鈴木 寿, 菅野 幹宏, 叶野 治1982 年 32 巻 1 号 p. 26-31
発行日: 1982/01/30
公開日: 2008/07/23
ジャーナル フリーTransmission electron microscopy was carried out on the Al-4%Cu alloy solution-treated at 793K for 7.2ks, quenched into iced water or directly quenched to an aging bath and subsequently aged for different times. Homogeneous precipitation of a θ' phase never occurs in any cases. The θ' structure actually observed is controlled by the θ' precipitates formed on dislocation loops, dislocation lines and/or θ". The θ' precipitates form on dislocation loops if specimens were water quenched or direct-quenched to comparatively low temperatures and aged; on considerably sparse dislocation lines if direct-quenched where neither loops nor θ" appear; and form on θ" if direct-quenched where loops never appear but θ" precipitates develope.抄録全体を表示PDF形式でダウンロード (2783K) -
鈴木 寿, 菅野 幹宏, 林 宏爾1982 年 32 巻 1 号 p. 32-45
発行日: 1982/01/30
公開日: 2008/07/23
ジャーナル フリーPDF形式でダウンロード (2173K) -
藤沼 弘, 吉森 孝良1982 年 32 巻 1 号 p. 46-52
発行日: 1982/01/30
公開日: 2008/07/23
ジャーナル フリーPDF形式でダウンロード (888K) -
中津川 悟1982 年 32 巻 1 号 p. 53-62
発行日: 1982/01/30
公開日: 2008/07/23
ジャーナル フリーPDF形式でダウンロード (1268K)
- |<
- <
- 1
- >
- >|