scholarly journals Effect of pre-strain on work-hardening behavior of magnesium alloy sheets upon cyclic loading

2014 ◽  
Vol 591 ◽  
pp. 69-77 ◽  
Author(s):  
Takayuki Hama ◽  
Hirotaka Nagao ◽  
Yota Kuchinomachi ◽  
Hirohiko Takuda
Keyword(s):  
Magnesium Alloy ◽  
Cyclic Loading ◽  
Work Hardening ◽  
Work Hardening Behavior ◽  
Hardening Behavior

OS2006 Work-Hardening Behavior of a Magnesium Alloy Sheet during Cyclic Loading

2011 ◽  
Vol 2011 (0) ◽  
pp. _OS2006-1_-_OS2006-3_
Author(s):  
Takayuki HAMA ◽  
Yuta KARIYAZAKI ◽  
Naohiro HOSOKAWA ◽  
Hitoshi FUJIMOTO ◽  
Hirohiko TAKUDA
Keyword(s):  
Magnesium Alloy ◽  
Cyclic Loading ◽  
Work Hardening ◽  
Alloy Sheet ◽  
Work Hardening Behavior ◽  
Magnesium Alloy Sheet ◽  
Hardening Behavior

Work-Hardening Behavior upon Reverse Loading in a Rolled AZ31 Magnesium Alloy Sheet

2014 ◽  
Vol 622-623 ◽  
pp. 603-608 ◽  
Author(s):  
Takayuki Hama ◽  
Hirohiko Takuda
Keyword(s):  
Magnesium Alloy ◽  
Work Hardening ◽  
Compressive Strain ◽  
Alloy Sheet ◽  
Az31 Magnesium Alloy ◽  
Work Hardening Behavior ◽  
Magnesium Alloy Sheet ◽  
Hardening Behavior ◽  
Reverse Loading ◽  
Az31 Magnesium Alloy Sheet

The objective of this study was to understand the work-hardening behavior of a rolled AZ31 magnesium alloy sheet upon reverse loading. Firstly we carried out an in-plane compression-tension test of a rolled AZ31 magnesium alloy sheet with various compressive strains. The sigmoidal curve was exhibited during tension regardless of the amount of compressive strain, but a shape of the curve was clearly different depending on the compressive strain. To understand the mechanism of this difference, a crystal plasticity finite-element simulation was carried out. The simulation result showed that the above difference in the shape was owing to the difference in the activities of slip and twinning systems during tension depending on the compressive strain.

Stir zone anisotropic work hardening behavior in friction stir processed EN8 medium carbon steel

2020 ◽  
pp. 140582
Author(s):  
Md Anwar Ali Anshari ◽  
Murshid Imam ◽  
Mohd Zaheer Khan Yusufzai ◽  
Viswanath Chinthapenta ◽  
Rajnish Mishra
Keyword(s):  
Carbon Steel ◽  
Work Hardening ◽  
Medium Carbon Steel ◽  
Stir Zone ◽  
Medium Carbon ◽  
Work Hardening Behavior ◽  
Friction Stir ◽  
Hardening Behavior

scholarly journals Machining-Induced Work Hardening Behavior of Inconel 718 Considering Edge Geometries

Materials ◽  
2022 ◽  
Vol 15 (2) ◽  
pp. 397
Author(s):  
Bin Zhou ◽  
Weiwei Zhang ◽  
Zhongmei Gao ◽  
Guoqiang Luo
Keyword(s):  
Grain Size ◽  
Work Hardening ◽  
Inconel 718 ◽  
Orthogonal Cutting ◽  
Chip Thickness ◽  
Machined Surface ◽  
Work Hardening Behavior ◽  
Hardening Behavior ◽  
Significant Difference ◽  
Optimization Of Cutting Parameters

As a representative type of superalloy, Inconel 718 is widely employed in aerospace, marine and nuclear industries. The significant work hardening behavior of Inconel 718 can improve the service performance of components; nevertheless, it cause extreme difficulty in machining. This paper aims to investigate the influence of chamfered edge parameters on work hardening in orthogonal cutting of Inconel 718 based on a novel hybrid method, which integrates Coupled Eulerian-Lagrangian (CEL) method and grain-size-based functions considering the influence of grain size on microhardness. Orthogonal cutting experiments and nanoindentation tests are conducted to validate the effectiveness of the proposed method. The predicted results are highly consistent with the experimental results. The depth of work hardening layer increases with increasing chamfer angle and chamfer width, also with increasing feed rate (the uncut chip thickness). However, the maximum microhardness on the machined surface does not exhibit a significant difference. The proposed method can provide theoretical guidance for the optimization of cutting parameters and improvement of the work hardening.

Influence of Zn addition on the microstructure, tensile properties and work-hardening behavior of Mg-1Gd alloy

2020 ◽  
Vol 772 ◽  
pp. 138779 ◽  
Author(s):  
Jun Zhao ◽  
Bin Jiang ◽  
Yuan Yuan ◽  
Aitao Tang ◽  
Haoran Sheng ◽  
...  
Keyword(s):  
Tensile Properties ◽  
Work Hardening ◽  
Work Hardening Behavior ◽  
Hardening Behavior ◽  
Zn Addition
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