The Experts below are selected from a list of 33 Experts worldwide ranked by ideXlab platform
K Hono - One of the best experts on this subject based on the ideXlab platform.
-
Alloy design for the development of Heat Treatable high strength mg sheet Alloy with excellent room temperature formability
TMS Annual Meeting & Exhibition, 2018Co-Authors: M Z Bian, T Nakata, Taizo Sasaki, Shigeharu Kamado, K HonoAbstract:To widen the application of the magnesium sheet Alloys, good room temperature (RT) formability and satisfactory strength need to be achieved. The development of Heat Treatable Alloy can be an effective approach to simultaneously achieve the good RT formability and satisfactory strength. In this work, we have investigated the effects of Zn content on the microstructure, stretch formability and mechanical properties in the Mg–xZn–0.36Zr–0.32Ca (x = 3, 4, 5 wt%) sheet Alloys. The as-rolled samples showed strong basal textures regardless of the Zn content. However, the decrease in the Zn content resulted in the significant texture weakening in the solution treated samples, and this leads to the improvement of the stretch formability up to 7.3 mm in Index Erichsen value in the Mg–3.1Zn–0.36Zr–0.32Ca Alloy. Subsequent artificial aging at 160 °C for 16 h slightly increased the tensile yield strength of Mg–4Zn–0.36Zr–0.32Ca Alloy sheet from 176 to 194 MPa. This work has demonstrated that the Mg–Zn system is promising to achieve excellent RT formability and high strength, however, the slow age hardening kinetics needs to be improved to make it industrially viable.
M Z Bian - One of the best experts on this subject based on the ideXlab platform.
-
Alloy design for the development of Heat Treatable high strength mg sheet Alloy with excellent room temperature formability
TMS Annual Meeting & Exhibition, 2018Co-Authors: M Z Bian, T Nakata, Taizo Sasaki, Shigeharu Kamado, K HonoAbstract:To widen the application of the magnesium sheet Alloys, good room temperature (RT) formability and satisfactory strength need to be achieved. The development of Heat Treatable Alloy can be an effective approach to simultaneously achieve the good RT formability and satisfactory strength. In this work, we have investigated the effects of Zn content on the microstructure, stretch formability and mechanical properties in the Mg–xZn–0.36Zr–0.32Ca (x = 3, 4, 5 wt%) sheet Alloys. The as-rolled samples showed strong basal textures regardless of the Zn content. However, the decrease in the Zn content resulted in the significant texture weakening in the solution treated samples, and this leads to the improvement of the stretch formability up to 7.3 mm in Index Erichsen value in the Mg–3.1Zn–0.36Zr–0.32Ca Alloy. Subsequent artificial aging at 160 °C for 16 h slightly increased the tensile yield strength of Mg–4Zn–0.36Zr–0.32Ca Alloy sheet from 176 to 194 MPa. This work has demonstrated that the Mg–Zn system is promising to achieve excellent RT formability and high strength, however, the slow age hardening kinetics needs to be improved to make it industrially viable.
Prachya Peasura - One of the best experts on this subject based on the ideXlab platform.
-
EFFECTS OF POST WELD Heat TREATMENT ON ALUMINUM Alloy 7075 IN GAS METAL ARC WELDING
2012Co-Authors: Prachya PeasuraAbstract:The Heat-Treatable Alloys Al-Zn-Mg-Cu develop their properties by solution Heat treating and quenching, followed by either natural or artificial aging. The Heat-Treatable Alloy may also be annealed to attain maximum ductility. This research was the study in post weld Heat treatment (PWHT) that affected to mechanical properties and microstructure. The material in testing is aluminum Alloy 7075 grade. The 2 3 factorial design applied in to experiment. The samples will be solutionized at 200 and 250 0 C in induction furnace and then air
Chris Karas - One of the best experts on this subject based on the ideXlab platform.
-
Gas Metal Arc Welded (GMAW) Joint Strength Comparison of Aluminum Sheet (5754) and Exturded (6063) Alloys
Volume 3: Design and Manufacturing, 2007Co-Authors: Ramakrishna Koganti, Armando Joaquin, Matthew John Zaluzec, Chris KarasAbstract:The development of lightweight vehicles, in particular aluminum intensive vehicles, require significant manufacturing process development for joining and assembling aluminum structures. Currently, 5xxx and 6xxx aluminum Alloys are being used in various structural applications in a number of lightweight vehicles worldwide. Various joining methods, such as GMAW (it is also referred as Metal Inert Gas Welding), Laser and adhesive bonding have been investigated as technology enablers for high volume joining of 5xxx, and 6xxx series Alloys. In this study, GMA welding was used to join 5754 non-Heat-Treatable Alloy sheet and 6063-T6 Heat Treatable extrusion products. The objective of this study was to develop optimum weld process parameters for non-Heat-Treatable 5754 aluminum and Heat treatble 6063-T6 Alloys. For both the Alloys, the lap joint configuration was used. The GMA welding equipment used in this study was an OTC/Daihen CPD-350 welding systems and DR-4000 pulse power supply. In the first phase of the experiments for 5754 aluminum Alloy, the factors selected for the experiment were power input (torch speed, voltage, current, wire feed), pulse frequency, gas flow rate and surface condition. A full factorial design of experiment (DOE) was conducted (DOE #1) to understand the main and interaction effects on lap joint failure and weld penetration. Based on the results from phase 1 results, surface condition was eliminated in the phase 2 experiments. In phase 2 experiments for Heat Treatable Alloys 6063 T6, the factors selected were power input (torch speed, voltage, current, wire feed), pulse frequency, gas flow rate, torch angle, and arc intensity. A partial factorial DOE was conducted (DOE # 2) primarily to understand the main effects and some two level interaction effects. For both phase 1 (non-Heat Treatable Alloy 5754) and phase 2 (Heat Treatable Alloy 6063-T6) experiments, the factors influence on the mechanical properties of the lap joint, metallurgy (weld penetration) and micro hardness were evaluated. Post weld analysis indicates for non Heat Treatable Alloy 5754, power input and gas flow rate are the two signficant factors (statistically) based on lap shear load to failure and weld penentration data. For Heat Treatable Alloy 6063, power input was the significant factor on joint load to failure, however, for weld penetration, power input, pulse frequency and gas flow rate were the significant factors. Based on the joint strength and weld penetration, optimum weld process factors were determined for both non-Heat Treatable Alloy 5754 and Heat treatble Alloy 6063 T6.
Shigeharu Kamado - One of the best experts on this subject based on the ideXlab platform.
-
Alloy design for the development of Heat Treatable high strength mg sheet Alloy with excellent room temperature formability
TMS Annual Meeting & Exhibition, 2018Co-Authors: M Z Bian, T Nakata, Taizo Sasaki, Shigeharu Kamado, K HonoAbstract:To widen the application of the magnesium sheet Alloys, good room temperature (RT) formability and satisfactory strength need to be achieved. The development of Heat Treatable Alloy can be an effective approach to simultaneously achieve the good RT formability and satisfactory strength. In this work, we have investigated the effects of Zn content on the microstructure, stretch formability and mechanical properties in the Mg–xZn–0.36Zr–0.32Ca (x = 3, 4, 5 wt%) sheet Alloys. The as-rolled samples showed strong basal textures regardless of the Zn content. However, the decrease in the Zn content resulted in the significant texture weakening in the solution treated samples, and this leads to the improvement of the stretch formability up to 7.3 mm in Index Erichsen value in the Mg–3.1Zn–0.36Zr–0.32Ca Alloy. Subsequent artificial aging at 160 °C for 16 h slightly increased the tensile yield strength of Mg–4Zn–0.36Zr–0.32Ca Alloy sheet from 176 to 194 MPa. This work has demonstrated that the Mg–Zn system is promising to achieve excellent RT formability and high strength, however, the slow age hardening kinetics needs to be improved to make it industrially viable.