Engineering Method for Analysis of the Ability to Strain-Hardening of Steels

2020 ◽  
Vol 299 ◽  
pp. 1190-1194
Author(s):  
Mikhail A. Filippov ◽  
Elena I. Korzunova ◽  
Valentina A. Sharapova
Keyword(s):  
Martensitic Transformation ◽  
Strain Hardening ◽  
Metals And Alloys ◽  
Engineering Method ◽  
Measuring Instruments ◽  
Rockwell Hardness ◽  
Austenite Stability ◽  
Austenitic Manganese ◽  
Hardness Increase ◽  
Manganese Steels

The strain-hardening ability has been estimated using a methodologically simple engineering criterion. A simple engineering method estimates the ability of metals and alloys to strain-hardening by the hardness increase determining. The Rockwell hardness has been measured at the bottom of the indentation cup of the Brinell press indenter. The strain-hardening tendency is investigated by the “two hardness-measuring instruments” method for two austenitic manganese steels, 110G13L and 110G6L, with different austenite stability to strain martensitic transformation. This hardness estimating method can be applied without making special samples and using deforming equipment.

Engineering Method for Analysis of the Ability to Strain-Hardening of Steels

2018 ◽  
Vol 284 ◽  
pp. 1168-1172
Author(s):  
Mikhail A. Filippov ◽  
Elena I. Korzunova ◽  
M.V. Tyumkova
Keyword(s):  
Strain Hardening ◽  
Austenitic Steel ◽  
Engineering Method ◽  
Manganese Steel ◽  
Rockwell Hardness ◽  
High Manganese ◽  
Wear Resistant ◽  
Steel 110G13l ◽  
High Manganese Austenitic Steel ◽  
Structural Classes

A study of the structure and strain-hardening ability relationship was carried out in this work for wear-resistant steels of two structural classes: high-manganese austenitic steel 110G13L and metastable austenitic chromium-manganese steel 60G9KhL. It is shown that the strain-hardening ability can be estimated using a methodologically simple engineering criterion. The criterion determines the metal tendency to harden by determining the Rockwell hardness at the bottom of the indentation cup of the Brinell press indenter

Methodology for Evaluation of Treated Steels and Alloys in Abrasive Processing

2021 ◽  
Vol 410 ◽  
pp. 262-268
Author(s):  
Vyacheslav M. Shumyacher ◽  
Sergey A. Kryukov ◽  
Natal'ya V. Baidakova
Keyword(s):  
Physical And Mechanical Properties ◽  
Metals And Alloys ◽  
Grinding Wheel ◽  
Measuring Instruments ◽  
Abrasive Machining ◽  
Machining Performance ◽  
Abrasive Grains ◽  
Abrasive Tools ◽  
Composition Structure ◽  
Grinding Operations

One of the critical physical and mechanical properties of metals and alloys is the suitability for abrasive machining. Machining by abrasive tools is the final operation that sets the desired macro-geometry parameters of processed blanks and microgeometry parameters of processed surfaces such as roughness and length of a bearing surface. Abrasive machining determines the most important physical and mechanical parameters of a blank surface layer, i.e. stresses, phase composition, structure. Machinability by abrasive tools depends on the machining performance affected both by the blank material properties and various processing factors. In our previous studies, we proved that during abrasive machining the metal microvolume affected by abrasive grains accumulates energy. This energy is used for metal dispersion and is converted into heat. According to the theoretical studies described herein, one may note the absence of a reliable and scientifically valid method as well as measuring instruments to determine the machinability of metals and alloys by abrasive tools. For this reason, we suggested a method simulating the effect the multiple abrasive grains produce in a grinding wheel, and enabling us to identify machinability of metals and alloys, select the most efficient abrasive materials for machining of the same, and form the basis for development of effective grinding operations.

Properties of austenitic manganese steels alloyed with carbide-forming elements

1967 ◽  
Vol 8 (10) ◽  
pp. 809-812
Author(s):  
V. I. Grigorkin ◽  
G. V. Korotushenko
Keyword(s):  
Austenitic Manganese ◽  
Manganese Steels

Mechanical Behaviors of Electrodeposited Bulk Nanocrystalline Metals and Alloys

2011 ◽  
Vol 683 ◽  
pp. 113-126
Author(s):  
S. Han ◽  
Jian She Lian ◽  
J.W. Mu ◽  
X.X. Shen ◽  
L.Y. Qin ◽  
...  
Keyword(s):  
Strain Hardening ◽  
High Strain ◽  
Rate Sensitivity ◽  
High Strength ◽  
Deformation Mode ◽  
Mechanical Tests ◽  
Metals And Alloys ◽  
Dual Phase ◽  
Bulk Nanocrystalline ◽  
High Strain Rate Sensitivity

Nanocrystalline (NC) metals and alloys always exhibit extremely high strength but quite limited ductility. This disappointing ductility might be caused by the preparation artifacts and the weak strain hardening ability of NC materials. In order to optimize the mechanical properties of NC metals and alloys , especially to enhance their ductility, and investigate the underlying deformation mechanism, nanocrystalline Ni, dual phase Ni-Co alloy and Cu were synthesized via electrodeposition and electro-brush deposition respectively, and then a series of mechanical tests were carried out. The results show that all the materials exhibit a combination of high strength and remarkable ductility. The high strength can be attributed to the “true” nanocrystalline grain sizes ranges from 15 to 30 nm. In addition, three factors are revealed to contribute to the enhanced ductility of these materials, respectively: (a) modified deformation mode (the tensile-relaxation cycle test) for nanocrystalline Ni, (b) high strain hardening and cooperative deformation for dual-phase Ni-Co alloy, and (c) high strain rate sensitivity for nanocrystalline Cu.

scholarly journals Decoupling the Impacts of Strain Rate and Temperature on TRIP in a Q&P Steel

JOM ◽  
2022 ◽  
Author(s):  
Christopher B. Finfrock ◽  
Diptak Bhattacharya ◽  
Brady N. L. McBride ◽  
Trevor J. Ballard ◽  
Amy J. Clarke ◽  
...  
Keyword(s):  
Martensitic Transformation ◽  
Strain Rate ◽  
Strain Hardening ◽  
Electron Backscatter Diffraction ◽  
Dislocation Slip ◽  
Transformation Induced Plasticity ◽  
High Strain Rate Deformation ◽  
The Individual ◽  
Backscatter Diffraction ◽  
Strain Hardening Rate

AbstractThe individual effects of strain rate and temperature on the strain hardening rate of a quenched and partitioned steel have been examined. During quasistatic tests, resistive heating was used to simulate the deformation-induced heating that occurs during high-strain-rate deformation, while the deformation-induced martensitic transformation was tracked by a combination of x-ray and electron backscatter diffraction. Unique work hardening rates under various thermal–mechanical conditions are discussed, based on the balance between the concurrent dislocation slip and transformation-induced plasticity deformation mechanisms. The diffraction and strain hardening data suggest that the imposed strain rate and temperature exhibited dissonant influences on the martensitic phase transformation. Increasing the strain rate appeared to enhance the martensitic transformation, while increasing the temperature suppressed the martensitic transformation.

Effect of Aluminum and Vanadium on Retained Austenite Stability and Work Hardening in Silicon Free TRIP Steel

2020 ◽  
Vol 835 ◽  
pp. 347-352
Author(s):  
Ahmed El-Sherbiny ◽  
Mohamed Kamal El-Fawkhry ◽  
Ahmed Y. Shash ◽  
Tarek M. El-Hossainy ◽  
Ayman Mohamed Fathy ◽  
...  
Keyword(s):  
Strain Hardening ◽  
Trip Steel ◽  
Retained Austenite ◽  
X Ray Diffraction ◽  
Alloying Element ◽  
Etching Technique ◽  
Complete Replacement ◽  
Austenite Stability ◽  
Retained Austenite Stability ◽  
Strong Candidate

Despite that the conventional CSiMn TRIP steel has a promissing mechanical attributes, it has a limitations on the galvanizability of such grades of steel due to Silicon. Thus, aluminum as a strong candidate for substituting silicon has been introduced in this study accompanied by vanadium as a microalloying element. Microstructure of the studied steel was observed by using OM, and SEM. X-ray diffraction analysis, and tent-etching technique carried out on the studied steel to identify the fractions of the retained Austenite after thermal mechanical process, as well as its morphology. In addition, the mechanical properties in term of strength, ductility, strain hardening, and the rate of strain hardening were studied to define the influenced parameters throughout this alteration. The results refer to the possibility of complete replacement of silicon in TRIP steel with aluminum at the presence of vanadium as a micro alloying element.

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