Effects of preliminary plastic deformation on the properties of heat-treated spring strip

1962 ◽  
Vol 4 (1-2) ◽  
pp. 75-76
Author(s):  
V. Ya. Zubov ◽  
S. V. Grachev
Keyword(s):  
Plastic Deformation ◽  
Preliminary Plastic Deformation ◽  
Spring Strip ◽  
Heat Treated

Structure and Hardness of Cryorolled and Heat-Treated 2xxx Aluminum Alloy

2010 ◽  
Vol 667-669 ◽  
pp. 925-930
Author(s):  
S.V. Krymskiy ◽  
Elena Avtokratova ◽  
M.V. Markushev ◽  
Maxim Yu. Murashkin ◽  
O.S. Sitdikov
Keyword(s):  
Heat Treatment ◽  
Solid Solution ◽  
Plastic Deformation ◽  
Aluminum Alloy ◽  
Severe Plastic Deformation ◽  
Coarse Grained ◽  
Aging Response ◽  
Heat Treated ◽  
Aluminum Solid Solution ◽  
A Cell

The effects of severe plastic deformation (SPD) by isothermal rolling at the temperature of liquid nitrogen combined with prior- and post-SPD heat treatment, on microstructure and hardness of Al-4.4%Cu-1.4%Mg-0.7%Mn (D16) alloy were investigated. It was found no nanostructuring even after straining to 75%. Сryodeformation leads to microshear banding and processing the high-density dislocation substructures with a cell size of ~ 100-200 nm. Such a structure remains almost stable under 1 hr annealing up to 200oC and with further temperature increase initially transforms to bimodal with a small fraction of nanograins and then to uniform coarse grained one. It is found the change in the alloy post–SPD aging response leading to more active decomposition of the preliminary supersaturated aluminum solid solution, and to the alloy extra hardening under aging with shorter times and at lower temperatures compared to T6 temper.

Elasto-plastic deformation of glass-like carbons heat-treated at different temperatures

Carbon ◽  
2001 ◽  
Vol 39 (10) ◽  
pp. 1525-1532 ◽  
Author(s):  
Norio Iwashita ◽  
Michael V. Swain ◽  
John S. Field ◽  
Naoto Ohta ◽  
Shingo Bitoh
Keyword(s):  
Plastic Deformation ◽  
Heat Treated ◽  
Different Temperatures

Effect of preliminary plastic deformation on the destruction of composite material

1989 ◽  
Vol 31 (7) ◽  
pp. 485-487
Author(s):  
M. A. Krishtal ◽  
Ya. A. Gokhberg ◽  
V. I. Frolov ◽  
L. E. �pshtein ◽  
N. V. Volokhova
Keyword(s):  
Plastic Deformation ◽  
Composite Material ◽  
Preliminary Plastic Deformation

Characterization of Microstructure and Mechanical Properties of 6060 Aluminum Alloy Processed by ECAP

2018 ◽  
Vol 275 ◽  
pp. 81-88
Author(s):  
Monika Karoń ◽  
Marcin Adamiak
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Plastic Deformation ◽  
Aluminum Alloy ◽  
Internal Stresses ◽  
Refined Grains ◽  
Angular Pressing ◽  
Heat Treated ◽  
Evolution Of Microstructure

The purpose of this paper is to present the microstructure and mechanical behavior of 6060 aluminum alloy after intense plastic deformation. Equal Channel Angular Pressing (ECAP) was used as a method of severe plastic deformation. Before ECAP part of the samples were heat treated to remove internal stresses in the commercially available aluminium alloy. The evolution of microstructure and tensile strength were tested after 1, 3, 6 and 9 ECAP passes in annealed and non annealed states. It was found that intensely plastically deformed refined grains were present in the tested samples and exhibited increased mechanical properties. Differences were noted between samples without and after heat treatment

scholarly journals Analysis of Different 100Cr6 Material States Using Particle-Oriented Peening

Metals ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. 1056 ◽  
Author(s):  
Anastasiya Toenjes ◽  
Nicole Wielki ◽  
Daniel Meyer ◽  
Axel von Hehl
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Plastic Deformation ◽  
Heating Rate ◽  
Differential Scanning Calorimeter ◽  
Microstructural Properties ◽  
Material Development ◽  
Heat Treated ◽  
Aisi 52100 ◽  
Novel Method

As part of a novel method for evolutionary material development, particle-oriented peening is used in this work to characterize 100Cr6 (AISI 52100) microparticles that were heat-treated by means of a differential scanning calorimeter (DSC). The plastic deformation of the samples in particle-oriented peening is correlated with the microstructural properties considering different heat-treatment variations. While the heating rate was kept constant (10 K/min) for all heat treatments, different heating temperatures (500 °C, 800 °C, 1000 °C and 1100 °C) were realized, held for 20 min and then cooled down at a rate of 50 K/min. Thereby, microstructural states with different (mechanical) properties are generated. For validation, microsections of the particles were analyzed and additional universal microhardness measurements (UMH) were performed. It could be shown that the quickly assessable plastic deformation descriptor reacts sensitively to the changes in the hardness due to the heat treatment.

Oscillating Contact Wear in Cold Sprayed Ti6Al4V Coatings for Aeronautical Repairs

2018 ◽  
Vol 941 ◽  
pp. 1686-1691 ◽  
Author(s):  
Pedro Poza ◽  
Paloma Sirvent ◽  
Álvaro Rico ◽  
Claudio J. Múnez ◽  
Miguel Ángel Garrido
Keyword(s):  
Plastic Deformation ◽  
Room Temperature ◽  
Point Of View ◽  
Wear Behaviour ◽  
Bulk Alloy ◽  
Contact Wear ◽  
Heat Treated ◽  
Mixed Layers ◽  
Wear Tests ◽  
Mixed Mechanism

Ti6Al4V coatings were cold sprayed onto the same bulk alloy using standard conditions and a set of parameters developed to improve the coating’s performance. In addition, the enhanced coating was heat treated to improve coating adhesion and reduce porosity. Wear tests were performed, onto the coatings and the substrate, in oscillating conditions, which simulate wear induced by the contact with bearing parts during vibration. Wear behaviour at room temperature is dominated by a mixed mechanism, which involves plastic deformation and transference from the counterbody forming mechanically mixed layers. As temperature is increased, the formation of mechanically mixed layers dominates wear. The wear resistance of the enhanced coatings is similar to the bulk alloy, or even better in some conditions. Consequently, cold sprayed improved coatings could be used for repairing titanium components from the contact wear point of view.

Plastic Deformation Behavior of Micro-Alloyed Cold Forging Steel

2007 ◽  
Vol 26-28 ◽  
pp. 61-64
Author(s):  
Yong Nam Kwon ◽  
Young Seon Lee ◽  
Jung Hwan Lee
Keyword(s):  
Plastic Deformation ◽  
Work Hardening ◽  
Cold Working ◽  
Cold Forging ◽  
Element Analysis ◽  
Die Life ◽  
Heat Treated ◽  
Plastic Deformation Behavior ◽  
Save Energy ◽  
Life Predictions

Micro-alloyed cold forging steel has been developed to rule out heat treatment process before forging in order to save energy consumption. These non heat-treated cold forging steels utilize the work hardening during cold working to ensure the mechanical properties. In other words, the required strength of forged part is achieved by work hardening with the accumulation of plastic strain during the cold working. Therefore, the plastic deformation characteristics should be carefully understood for successful process design. Evolution of both microstructure and plastic characteristics of micro-alloyed cold forging steel has been investigated in the present study. For the optimization of forging processes, finite element analysis and die life predictions were carried out.

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