<論文>腐食環境下のばね用材料の変動ねじり疲労における寿命評価と変形特性 : 食塩水濃度の影響

概要

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The varying torsional fatigue tests in the sodium chloride solution with various concentration were carried out by using an annealed Hard steel wires, and the test results were used to investigate the influence of sodium chloride solution with various concentration on the corrosion fatigue strength. And these results were compared with those in the case of Stainless steel wires. As the main conclusion, the ratio of decrease in corrosion fatigue strength of the test piece is the smallest in 0.5% NaCl solution, and is the largest in 7% NaCl solution among the sodium chloride solution with various concentration. And the effect of corrosion is larger Hard steel wires than that Stainless steel wires. And the test results shows nearly the linear relationship between the varying plastic strain amplitude and the number of cycles to failure, the varying stress amplitude or hysteresis energy, when they are plotted on a log-log scale.
神戸市立工業高等専門学校の論文
1997-02-28