Influence of stacking fault energy and short-range ordering on dynamic recovery and work hardening behavior of copper alloys

2010 ◽  
Vol 62 (9) ◽  
pp. 693-696 ◽  
Author(s):  
Farzad Hamdi ◽  
Sirous Asgari
Keyword(s):  
Work Hardening ◽  
Short Range ◽  
Dynamic Recovery ◽  
Copper Alloys ◽  
Stacking Fault ◽  
Stacking Fault Energy ◽  
Work Hardening Behavior ◽  
Hardening Behavior ◽  
Short Range Ordering

scholarly journals Impact of Short-Range Clustering on the Multistage Work-Hardening Behavior in Cu–Ni Alloys

Metals ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 151 ◽  
Author(s):  
Dong Han ◽  
Jin-Xian He ◽  
Xian-Jun Guan ◽  
Yan-Jie Zhang ◽  
Xiao-Wu Li
Keyword(s):  
Work Hardening ◽  
Short Range ◽  
Strain Range ◽  
Work Hardening Behavior ◽  
Hardening Behavior ◽  
Ni Alloys ◽  
Hardening Process ◽  
Ni Content ◽  
Ni Alloy ◽  
Work Hardening Rate

The work-hardening behavior of Cu–Ni alloys with high stacking-fault energies (SFEs) is experimentally investigated under uniaxial compression. It is found that, with the increase of Ni content (or short-range clustering, SRC), the flow stress of Cu–Ni alloys is significantly increased, which is mainly attributed to an enhanced contribution of work-hardening. An unexpected multistage (including Stages A, B, and C) work-hardening process was found in this alloy, and such a work-hardening behavior is essentially related to the existence of SRC structures in alloys. Specifically, during deformation in Stage B (within the strain range of 0.04–0.07), the forming tendency to planar-slip dislocation structures becomes enhanced with an increase of SRC content (namely, increase of Ni content), leading to the occurrence of work-hardening rate recovery in the Cu–20at.% Ni alloy. In short, increasing SRC in the Cu–Ni alloy can trigger an unexpected multistage work-hardening process, and thus improve its work-hardening capacity.

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 Effect of stacking fault energy on the restoration mechanisms and mechanical properties of friction stir welded copper alloys

2019 ◽  
Vol 162 ◽  
pp. 185-197 ◽  
Author(s):  
Akbar Heidarzadeh ◽  
Tohid Saeid ◽  
Volker Klemm ◽  
Ali Chabok ◽  
Yutao Pei
Keyword(s):  
Mechanical Properties ◽  
Copper Alloys ◽  
Stacking Fault ◽  
Stacking Fault Energy ◽  
Friction Stir

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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