Effect of surface work hardening on the endurance of high-quality martensitic 1Cr12Ni2MoWVNb stainless steel

1972 ◽  
Vol 6 (1) ◽  
pp. 33-35 ◽  
Author(s):  
T. N. Kalichak ◽  
V. I. Pokhmurskii
Keyword(s):  
Stainless Steel ◽  
Work Hardening ◽  
High Quality ◽  
Surface Work ◽  
Effect Of Surface

Effect of surface work hardening on wear behavior of Hadfield steel

2007 ◽  
Vol 460-461 ◽  
pp. 542-549 ◽  
Author(s):  
Weilin Yan ◽  
Liang Fang ◽  
Kun Sun ◽  
Yunhua Xu
Keyword(s):  
Work Hardening ◽  
Wear Behavior ◽  
Hadfield Steel ◽  
Surface Work ◽  
Effect Of Surface

ALLEGHENY LUDLUM TYPE 305

Alloy Digest ◽  
2002 ◽  
Vol 51 (1) ◽  
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
High Temperature ◽  
Physical Properties ◽  
Work Hardening ◽  
Deep Drawing ◽  
Heat Treating ◽  
Cold Forming ◽  
Temperature Performance ◽  
Low Rate

Abstract Allegheny Ludlum Type 305 (S30500) stainless steel is used for applications requiring a low rate of work hardening during severe cold-forming operations such as deep drawing. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on high temperature performance and corrosion resistance as well as heat treating and joining. Filing Code: SS-840. Producer or source: Allegheny Ludlum Corporation.

ARMCO 18-9LW

Alloy Digest ◽  
1962 ◽  
Vol 11 (11) ◽  
Keyword(s):  
Stainless Steel ◽  
Corrosion Resistance ◽  
Physical Properties ◽  
Surface Treatment ◽  
Tensile Properties ◽  
Work Hardening ◽  
Heat Treating ◽  
Cold Forming

Abstract Armco 18-9LW is a low-work-hardening stainless steel developed for severe cold heading, swaging and other cold forming applications. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: SS-138. Producer or source: Armco Inc., Eastern Steel Division.

On effect of surface hardening on impact and abrasive wear resistance of Hadfi eld steel

2020 ◽  
pp. 252-255
Author(s):  
V.I. Bolobov ◽  
V.S. Bochkov ◽  
E.V. Akhmerov ◽  
V.A. Plashchinsky ◽  
E.A. Krivokrisenko E.A.
Keyword(s):  
Plastic Deformation ◽  
Wear Resistance ◽  
Abrasive Wear ◽  
Work Hardening ◽  
Surface Hardening ◽  
Cold Work ◽  
Abrasive Wear Resistance ◽  
Hadfield Steel ◽  
Mining Equipment ◽  
Effect Of Surface

On the example of Hadfield steel, as the most common material of fast-wearing parts of mining equipment, the effect of surface hardening by plastic deformation on their impact and abrasive wear resistance is considered. Wear test is conducted on magnetic ironstone as typical representative of abrasive and hard rock. As result of wear of initial samples with hardness of ∼200 HB and samples pre-hardened with different intensities to the hardness of 300, 337 and 368 HB, it is found that during the initial testing period, the initial samples pass the “self-cold-work hardening” stage with increase in hardness to ∼250 HB, which remains virtually unchanged during further tests; the hardness of the pre-hardened samples does not change significantly throughout the tests. It is established that the rate of impact-abrasive wear of pre-hardened samples is significantly (up to 1.4 times) lower than the original ones that are not subjected to plastic deformation, and decreases with increasing degree of cold-work hardening. Preliminary surface hardening by plastic deformation can serve as effective way to increase the service life of fast-wearing working parts of mining equipment.

scholarly journals High-quality percussion drilling with ultrashort laser pulses

2021 ◽  
Vol 127 (9) ◽  
Author(s):  
A. Feuer ◽  
R. Weber ◽  
R. Feuer ◽  
D. Brinkmeier ◽  
T. Graf
Keyword(s):  
Stainless Steel ◽  
Laser Fluence ◽  
Ablation Threshold ◽  
Laser Pulses ◽  
Ultrashort Laser Pulses ◽  
High Quality ◽  
Edge Quality ◽  
Ultrashort Laser ◽  
Percussion Drilling

AbstractThe influence of the laser fluence on the quality of percussion-drilled holes was investigated both experimentally and by an analytical model. The study reveals that the edge quality of the drilled microholes depends on the laser fluence reaching the rear exit of the hole and changes with the number of pulses applied after breakthrough. The minimum fluence that must reach the hole’s exit in order to obtain high-quality microholes in stainless steel was experimentally found to be 2.8 times the ablation threshold.

Effect of surface oxide layer on deuterium permeation behaviors through a type 316 stainless steel

2012 ◽  
Vol 87 (5-6) ◽  
pp. 580-583 ◽  
Author(s):  
Yasuhisa Oya ◽  
Makoto Kobayashi ◽  
Junya Osuo ◽  
Masato Suzuki ◽  
Akiko Hamada ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Oxide Layer ◽  
Surface Oxide ◽  
Surface Oxide Layer ◽  
316 Stainless Steel ◽  
Effect Of Surface

Magnetic Resonance Imaging to Detect Avascular Necrosis After Open Reduction and Internal Fixation of Talar Neck Fractures

1996 ◽  
Vol 17 (12) ◽  
pp. 742-747 ◽  
Author(s):  
David B. Thordarson ◽  
Mark J. Triffon ◽  
Michael R. Terk
Keyword(s):  
Stainless Steel ◽  
Avascular Necrosis ◽  
The Body ◽  
Type Ii ◽  
Mr Images ◽  
High Quality ◽  
Type D ◽  
Titanium Screws ◽  
Signal Changes ◽  
Talar Neck Fractures

Twenty-one consecutive patients with displaced talar neck fractures (12 Hawkins type II, 9 Hawkins type III) were prospectively evaluated with magnetic resonance (MR) scans performed between 3 days and 12 months after surgery. All patients underwent open reduction and internal fixation with titanium screws, except two who underwent fixation with stainless steel implants that were subsequently removed. All patients had plain radiographs. We classified the scans as follows: type A, no abnormal signal changes in the body of the talus; type B, signal changes in less than 25% of the body; type C, signal changes in 25% to 50% of the body; and type D, signal changes in greater than 50% of the body. Plain anteroposterior radiographs correlated well with MR scans in patients with type D scans, but an inconsistent correlation was noted with lesser degrees of signal changes (types A–C), with the MR scans being more accurate in displaying the volume of avascular bone. Scans obtained less than 3 weeks after injury were not helpful in assessing for avascular necrosis. We found that high-quality MR images of the talus were consistently obtained in the presence of titanium screws in contrast to images obtained with stainless steel implants. We use titanium screws in all talar neck fracture repairs, because they permit high-quality MR images. We believe that further study of patients with Hawkins type III fractures and Hawkins type II fractures with equivocal radiographic evidence of avascular necrosis is warranted to try to identify those patients at risk for collapse and perhaps to guide weightbearing recommendations.

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