Electrospark and laser alloying of medical instruments made of 40Kh13 steel

1998 ◽  
Vol 37 (9-10) ◽  
pp. 558-561 ◽  
Author(s):  
I. A. Podchernyaeva
Keyword(s):  
Laser Alloying ◽  
Medical Instruments ◽  
40Kh13 Steel

Residual stress distribution in laser alloying zone with FeCSiB powder

2008 ◽  
Author(s):  
Zhengyang Li ◽  
Haiyan Zhao ◽  
Minlin Zhong ◽  
Bin Zhang ◽  
Yu Gu ◽  
...  
Keyword(s):  
Residual Stress ◽  
Stress Distribution ◽  
Residual Stress Distribution ◽  
Laser Alloying

Laser alloying of aluminium and 7175 aluminium alloy for enhanced corrosion resistance

1993 ◽  
Author(s):  
A. Almeida ◽  
R. Vilar ◽  
R. Li ◽  
M. G. S. Ferreira ◽  
K. G. Watkins ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
Aluminium Alloy ◽  
Laser Alloying

Innovative medical instruments data platform and service ecosystem construction

2021 ◽  
Author(s):  
Lei Wang ◽  
Kun Han ◽  
Qing Qian ◽  
Qiang Zhang ◽  
Jishuai Wang ◽  
...  
Keyword(s):  
Data Platform ◽  
Medical Instruments ◽  
Service Ecosystem

Combination surface hardening of steel (laser alloying + nitriding)

1994 ◽  
Vol 36 (3) ◽  
pp. 125-129
Author(s):  
O. V. Chudina
Keyword(s):  
Surface Hardening ◽  
Laser Alloying

Ni Content Surface Layer Produced by Laser Surface Treatment on Amorphisable Cu Base Alloy

2010 ◽  
Vol 649 ◽  
pp. 101-106
Author(s):  
Mária Svéda ◽  
Dóra Janovszky ◽  
Kinga Tomolya ◽  
Jenő Sólyom ◽  
Zoltán Kálazi ◽  
...  
Keyword(s):  
Surface Layer ◽  
Surface Treatment ◽  
Laser Cladding ◽  
Base Alloy ◽  
Laser Surface ◽  
Laser Alloying ◽  
Laser Surface Treatment ◽  
Ni Content ◽  
Wide Range ◽  
The Matrix

The aim of our research was to comparatively examine Ni content surface layers on amorphisable Cu base alloy produced by different laser surface treatments. Laser surface treatment (LST) techniques, such as laser surface melting, laser alloying and laser cladding, provide a wide range of interesting solutions for the production of wear and corrosion resistant surfaces. [1,2] With LST techniques, the surface can be: i) coated with a layer of another material by laser cladding, ii) the composition of the matrix can be modified by laser alloying. [3] Two kinds of laser surface treatment technologies were used. In the case of coating-melting technology a Ni content surface layer was first developed by galvanization, and then the Ni content layer was melted together with the matrix. In the case of powder blowing technology Ni3Al powder was blown into the layer melted by laser beam and Argon gas. LST was performed using an impulse mode Nd:YAG laser. The laser power and the interaction time were 2 kW and 20÷60 ms. The characterization of the surface layer microstructure was performed by XRD, scanning electron microscopy and microhardness measurements.

Casings for electronic medical instruments and apparatuses

1968 ◽  
Vol 2 (3) ◽  
pp. 169-172
Author(s):  
E. L. Vainer
Keyword(s):  
Medical Instruments

EFFECT OF HEAT TREATMENT ON MICROSTRUCTURE CHARACTERISTICS OF LASER COMPOSITES

2014 ◽  
Vol 21 (01) ◽  
pp. 1450014
Author(s):  
PENG LIU ◽  
YUANBIN ZHANG ◽  
YAJIANG LI ◽  
QINGQING YANG ◽  
YAN LIU ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Electron Microscope ◽  
Theoretical Basis ◽  
Laser Alloying ◽  
Wear Properties ◽  
Microstructure Characteristics ◽  
Transmission Electron ◽  
Treatment Technologies ◽  
Intensity Transfer ◽  
Scanning Electron

In this paper, effect of heat treatment on the microstructures and wear properties of laser alloying (LA) composites is investigated. LA of the T - Co 50/ FeSi / TiC / TiN / CeO 2 mixed powders on substrate of 45 steel can form the hard composites, which increased the wear resistance of substrate greatly. Such LA composites were investigated by means of a scanning electron microscope (SEM) and a transmission electron microscope (TEM). The tempering promoted the growth of the block-shape hard phases, favoring an enhancement of the integrity of block-shape hard phases; and tempering also improved greatly the formation mechanism, guarantying the composites to have enough ability of intensity transfer. This research provided essential experiment and theoretical basis to promote the application of the laser and heat treatment technologies in the field of surface modification.

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