巻号一覧
32 巻, 4 号
選択された号の論文の8件中1～8を表示しています
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吉永 日出男1982 年 32 巻 4 号 p. 167-168
発行日: 1982/04/30
公開日: 2008/07/23
ジャーナル フリーPDF形式でダウンロード (287K) -
新井 浩三, 大塚 良達, 鈴木 崇生, 田口 教平, 豊田 一雄1982 年 32 巻 4 号 p. 169-174
発行日: 1982/04/30
公開日: 2008/07/23
ジャーナル フリーAn Al-0.8wt%Fe-0.8wt%Si commercial alloy for deep drawing of aluminum light gauge sheets was hot rolled, solution heat treated at 520°C for 4hr precipitation heat-treated at different temperatures from 150° to 520°C for 4hr (preheating treatment), cold rolled and finally annealed. Silicon particles are easily precipitated by the preheating treatment at low temperatures from 150° to 400°C. These particles inhibit preferential growth fo cube texture at the initial stage of recrystallization, and isotropical grain growth proceeds. The finest size of recrystallized grains is achieved by silicon particles precipitated in the preheating treatment at 350°C for 4hr.抄録全体を表示PDF形式でダウンロード (1470K) -
村田 裕滋, 高橋 恒夫1982 年 32 巻 4 号 p. 175-181
発行日: 1982/04/30
公開日: 2008/07/23
ジャーナル フリーA deep drawing test was carried out using a lubricating mlneral oil containing such additives as 10% oiliness agents (Oleic acid, Oleyl alcohol, Methyl oleate) and 5% E. P. agents (Tricresyl phosphate, Dibenzyl disulfide, Chlorinated paraffin) and an oxidized oil. The limited drawing ratio increases when worked at a low drawing speed using the additive-lubricating oil, but changes not so remarkably at a high drawing speed. The oiliness agents and oxidized oil lighten the drawing force, but the E. P. agents have a little effect. The amount of metal transfer of drawing materials to the die surface is lowered by the use of oleic acid and oxidized oil, but is increased by the use of chlorinated paraffin. The surface deep drawn using oiliness agents and oxidized oil is so fine that the 50th drawn cup has the maximum roughness less than 1.0μm, but that using E. P. agents is gradually roughened with the drawing number.抄録全体を表示PDF形式でダウンロード (1484K) -
山田 始, 田中 他喜男1982 年 32 巻 4 号 p. 182-187
発行日: 1982/04/30
公開日: 2008/07/23
ジャーナル フリーThe precipitation and the recrystallized grain size in a high purity Al-1%Mn alloy containing 0.5%Si were investigated. Si in the unhomogenized Al-Mn alloy accelerates generation of a number of nuclei after in situ recrystallization depending on the annealing time. This type of nucleation occurs even at slow heating to an annealing temperature. Slow heating preferably leads to a fine grain structure in the unhomogenized Al-Mn alloy containing Si. If heated rapidly, prolonged annealing results in a fine grain structure. While, Si remarkably intensifies the effect of heating rate on the grain size of the homogenized Al-Mn alloy. A small amount of precipitation still occurs during annealing in the cold deformed material. The precipitation at about 300°C in the Al-Mn alloy containing Si prevents the nucleation. The grain size is considerably governed by the heating rate at such a temperature.抄録全体を表示PDF形式でダウンロード (980K) -
高橋 知司, 加藤 道友, 大内 忠司1982 年 32 巻 4 号 p. 188-194
発行日: 1982/04/30
公開日: 2008/07/23
ジャーナル フリーPhysical and mechanical properties of sintered Al-320wt%Sn-06wt%Cu alloys in the temperature range from 500° to 570°C for 2h were measured in order to clarify basic conditions for manufacturing sintered bearings. Dimensions of the compacts sintered at 540°C for 2h decrease with increasing Sn and Cu contents. The sintered density, radial crushing strength and hardness of these alloys increase with increasing Sn and Cu contents, but the intercommunicating porosity decreases with increasing them. The beginning temperature of liquid phase sintering shifts to a lower temperature with increasing Sn content. The liquid phase sintering of Al-5wt%Sn-2wt%Cu compacts scarcely occurs at 500°C, but proceeds at about 540°C and above mainly by the formation of a liquid phase in ternary monotectic reaction. The optimum Sn and Cu contents are 510wt% and 24wt%, respectively.抄録全体を表示PDF形式でダウンロード (1450K) -
諸住 正太郎, 菊地 廸夫1982 年 32 巻 4 号 p. 195-201
発行日: 1982/04/30
公開日: 2008/07/23
ジャーナル フリーTensile test, optical and electron microscopies and EPMA were carried out on Al-Cu joints friction-welded and annealed at 350° to 500°C for 1h. An interfacial layer about 0.5μm in thickness produced between Al and Cu has a bonding strength that the joint withstands a tensile stress of 127MPa. The layer consists of CuAl2 and grains of an unknown and probably non-equilibrium phase. Although the layer is thickened to about 1.5μm by annealing at 350°C, it still has a fine grained structure and a high bonding strength 80MPa or more which is equivalent to the ultimate tensile strength of Al annealed at 350°C. When annealed at 400°C, the layer his higher strength than Al, but cracks produced by separating two sublayers are found in the layer. When annealed. at 450° or 500°C, the layer considerably weakens, the joint breaks down at the layer under a tensile stress about 45MPa, and well-developed sublayers are observed inside of the layer. The sublayers are identified with CuAl2, CuAl and Cu9Al4.抄録全体を表示PDF形式でダウンロード (3688K) -
内山 利光, 阿部 隆1982 年 32 巻 4 号 p. 202-210
発行日: 1982/04/30
公開日: 2008/07/23
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梶山 毅, 岡田 健三, 松尾 守1982 年 32 巻 4 号 p. 211-219
発行日: 1982/04/30
公開日: 2008/07/23
ジャーナル フリーPDF形式でダウンロード (1608K)
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