435 Fatigue behavior of die-cast AM60 alloy under different environmental conditions
スポンサーリンク
概要
- 論文の詳細を見る
Four-point bend (Inner span: 10mm, Outer span: 30mm) fatigue tests were carried out with two-groups of AM60 alloy; one group was as-cast and another group was shot-blasted. The as-cast specimens were tested in three different environmental conditions; low humidity (20℃, 55%RH), high humidity (50℃, 80%RH) and 5wt% NaCl corrosive environment while shot blasted specimens were tested in high humidity and 5wt% NaCl environment. In each case, frequency was kept at 20Hz, load ratio at 0.1 together with sinusoidal waveform. S-N curves show that shot blasted specimens present better fatigue life and fatigue strength as compared to those of as-cast specimens under any environmental condition. The lowest fatigue strength was shown by as-cast specimens under NaCl environment. However, fractographic observations did not reveal presence of any corrosion pit which is generally found by other researchers. On the contrary, corrosion induced crack nucleating sites were observed for both groups of alloys and assumed to be the main cause of degrading fatigue strength under aggressive environment. As for shot-blasted specimens compressive residual stress might have been induced during shot blasting which could have delayed initiation of fatigue cracks. Hence they showed better fatigue performance as compared to those of as-cast specimens under different environments.
- 2007-11-16
著者
-
Mutoh Yoshiharu
Dept. of Mechanical Engineer, Nagaoka University of Technology
-
Miyashita Yukio
Nagaoka National College Of Technology
-
Miyashita Yukio
Dept. Of Mechanical Engineering Nagaoka National College Of Technology
-
Khana Sabrina
Nagaoka University Of Technology
-
KOIKE Toshikatsu
Yamaha Motor Co., Ltd.
-
Khan Sabrina
Nagaoka University of Technology
-
Koike Toshikatsu
Yamaha Motor Co. Ltd.
-
Mutoh Y
Nagaoka Univ. Technol.
-
Koike Toshikatsu
Yamaha Motor Co.
関連論文
- E-10 Effect of Fabricating Process on Fatigue Behavior of HSLA Steel(Session: Fatique/SCG)
- S0301-5-1 Effect of Conversion Coating and Painting on the Corrosion Fatigue Behavior of Extruded Magnesium Alloy AZ61
- 1047 Effect of Chemical Conversion Coating on the Fatigue behavior of Extruded AZ61 Magnesium Alloys
- 435 Fatigue behavior of die-cast AM60 alloy under different environmental conditions
- 229 Effect of Fabricated Surface on Fretting Fatigue Strength
- 2306 Corrosion Fatigue Behavior of Extruded AZ31
- 114 Effect of Corrosive Environment on Fatigue Strength of Magnesium alloy AZ-61
- 113 Fatigue Strength of Fabricated Structure Steel
- Fatigue Behavior of SiC Fiber Reinforced SiC Matrix Composites(Composite 1)
- 17-O-10 Effect of Stress on Second Harmonic Generation of TeO_2-Based Glass Ceramics
- D-3 SURFACE MODIFICATION OF cp-Ti AND Ti-6Al-4V BY WET BLASTING TECHNIQUE FOR BIOMEDICAL APPLICATION(Session: Biomaterials)
- Development of SiC-Composite-PM Aluminum Alloy Piston (特集 最近の自動車焼結部品)
- OS11(1)-2(OS11W0243) Evaluation of Crack Initiation Limit in Fretting Fatigue Based on the Singular Stress Field near the Contact Edge
- 533 Effect of Environment on Fatigue Properties of Anodized AM60 Die-Cast Mg Alloys
- 211 Preparation of Brushite Film on Titanium Substrate from Supersaturated Calcium Phosphate Solution by Electrolytic Deposition
- 2814 Plasma spraying of Ti or HAp/Ti bond coat on the titanium substrate for implant material
- 309 High cycle fatigue properties of notched die cast AM60 magnesium alloy
- OS12(4)-16(OS12W0248) The Fracture Criterion of a Crack under Mixed I, II and III Modes
- 232 Al_2O_3-based Composite with BaTiO_3 Sintered by Spark Plasma Sintering
- J-1 MECHANICAL PROPERTIES MAPPING AROUND INTERFACE OF BONDED MATERIALS USING NANOINDENTATION(Session: Interface/FEM/CAE)
- 503 Statistical Approach to Fatigue Behavior of Die Cast AM60B
- 503 Fretting Fatigue Behavior of 304 Austenitic Stainless Steel and Strength Prediction
- Strength of Dissimilar Materials Joint between A5052 and PET Joined by Using Friction Stir Heating
- Study on a Controlling Method for Crack Nucleation and Propagation Behavior in Laser Cutting of Glass
- 606 Statistical approach to scatter of fatigue limit for magnesium alloy AZ61
- 621 Effect of physical characterization on the failure of hydroxyap atite coated layer on titanium Substrate