Optimization of the parameters of the surface-hardened layer in laser quenching of components

2012 ◽  
Vol 26 (8) ◽  
pp. 629-632 ◽  
Author(s):  
S. Yu. Kondrat'ev ◽  
V. I. Gorynin ◽  
V. O. Popov
Keyword(s):  
Hardened Layer ◽  
Laser Quenching ◽  
Surface Hardened Layer

Influence of laser surface hardened layer on mechanical properties of re-engineered low carbon steel sheet

2017 ◽  
Vol 685 ◽  
pp. 168-177 ◽  
Author(s):  
Badirujjaman Syed ◽  
Sulthan Mohiddin Shariff ◽  
Gadhe Padmanabham ◽  
Shaumik Lenka ◽  
Basudev Bhattacharya ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Carbon Steel ◽  
Steel Sheet ◽  
Low Carbon Steel ◽  
Hardened Layer ◽  
Laser Surface ◽  
Low Carbon ◽  
Carbon Steel Sheet ◽  
Surface Hardened Layer

IMPROVING THE PERFORMANCE OF MINERAL CERAMIC BLADE CUTTING TOOLS

2021 ◽  
pp. 40-44
Author(s):  
Yu. M. Zubarev ◽  
M. A. Afanasenkov
Keyword(s):  
Chemical Elements ◽  
Cutting Tools ◽  
Vacuum Treatment ◽  
Hardened Layer ◽  
Configuration Model ◽  
Functional Surface ◽  
Surface Layers ◽  
Working Surface ◽  
Blade Cutting ◽  
Surface Hardened Layer

The article considers the possibility of improving the performance of mineral-ceramic cutting plates by removing most of the defects on their working surface due to the formation of functional surface layers by ion-vacuum treatment. A model of a surface-hardened layer for VOK-60 type ceramics is proposed. Based on the configuration model of the substance, chemical elements are selected for modifying the surface layer of ceramics. The results of laboratory and production tests that showed an increase in the performance of ceramic plates after implantation by at least two times are presented.

Calculation of stress relaxation in a surface-hardened layer near the hole in the disk of a turbine in a gas-turbine engine

1988 ◽  
Vol 20 (8) ◽  
pp. 1088-1095
Author(s):  
Yu. P. Samarin ◽  
E. V. Grinevich ◽  
L. A. Muratova ◽  
V. P. Radchenko
Keyword(s):  
Stress Relaxation ◽  
Gas Turbine ◽  
Hardened Layer ◽  
Gas Turbine Engine ◽  
Turbine Engine ◽  
Surface Hardened Layer

scholarly journals Surface-hardened Layer Properties of Newly Developed Case-hardening Steel

2018 ◽  
Vol 58 (4) ◽  
pp. 727-733 ◽  
Author(s):  
Koh-ichi Sugimoto ◽  
Tomohiko Hojo ◽  
Yuta Mizuno
Keyword(s):  
Hardened Layer ◽  
Case Hardening ◽  
Case Hardening Steel ◽  
Surface Hardened Layer

Characterization of Wear Performance of Micro-Plasma Surface Hardened Layer

2009 ◽  
Vol 79-82 ◽  
pp. 1571-1574
Author(s):  
Gu Liu ◽  
Gui Ming Chen ◽  
Liu Ying Wang ◽  
Shao Chun Hua ◽  
Jian Xun Yao
Keyword(s):  
Carbon Steel ◽  
Hardened Layer ◽  
Wear Volume ◽  
Plasma Surface ◽  
Aisi 1045 ◽  
Microscopy Techniques ◽  
Surface Morphologies ◽  
Worn Surface ◽  
Surface Hardened Layer

Samples of AISI 1045 carbon steel were surface hardened by micro plasma transferred arc (PTA) process. The hardened layer was characterized using both light optical and scanning electron microscopy and microhardness techniques. The tribological properties of the surface hardened layer and untreated substrate were investigated using a block-on-ring tribometer sliding against GCr15 steel under unlubricated condition. The worn surface morphologies and dominant wear mechanisms were identified using microscopy techniques. Results show that the surface hardened layer consists mainly of martensite and retained austensite with fine and dense structure, the microhardness of hardened layer increases from approximately HV 200 to HV 600. The wear volume loss of plasma hardened layer was 81.86×10-11m3 much better than that of untreated AISI 1045 carbon steel (743.44×10-11m3). Wear of untreated AISI 1045 carbon steel occurred by combined mechanisms of adhesion, abrasion and plastic deformation. While the worn surface of surface hardened layer is quite better with slight track and thin oxides on the worn surfaces. Plasma surface hardening has essentially changed the wear mechanism of the AISI 1045 carbon steel to slight abrasion and oxidation wear.

Numerical Simulation of Surface Hardened Layer of the Hydraulic Track

2011 ◽  
Vol 194-196 ◽  
pp. 1333-1337
Author(s):  
Run Bo Bai ◽  
Fu Sheng Liu ◽  
Zong Mei Xu
Keyword(s):  
Numerical Simulation ◽  
Finite Element ◽  
Wear Resistance ◽  
Surface Layer ◽  
Hardened Layer ◽  
Distribution Model ◽  
Continuous Change ◽  
Finite Element Software ◽  
Calculation Results ◽  
Surface Hardened Layer

The surface of the large hydraulic track needs thermal treatment for hardening and tempering to improve its wear resistance and bearing capacities. Currently it is still difficult to simulate the hardened layer of the track. For that, this paper firstly put forward a surface layer hardness graded distribution model of the track, and then established a method to measure the hardness of the track in the finite element software. Based on the limit thinking, the meshes of the hardened layer of the track were refined, so as to achieve the purpose of using the discrete mesh to simulate the continuous change of the hardness graded distribution in the hardened layer of the track. Calculation results show that improving the hardness value and the thickness of the hardened layer of the track are benefit to the track’s bearing capacity and deformation stabilization.

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