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Comparison of service characteristics of coatings made of austenitic and martensitic stainless steels by means of laser gas-powder cladding.
Engineering Education # 06, June 2012
DOI: 10.7463/0612.0418550
In this article the authors consider properties of Cr17Ni13Mo2Ti and 40Cr13 coatings made by coaxial gas-powder laser cladding. CW fiber laser emission was used to create such coatings. Operating characteristics of coatings made by laser cladding of these steels are currently byways of learning. Usage of powder as a filler material is economically advantageous because it allows to produce coatings with different chemical compositions and properties. Besides, in comparison with the wire filler, uniform mapping of powder alloys onto difficult trajectories is easier. The article covers investigation of coating structure and mechanical properties along with establishment of their applicability domains in order to meet the demands of modern machine building.
Investigation of influence of laser operation on the structure and properties of tool steel with cladded coatings.
Engineering Education # 07, July 2012
DOI: 10.7463/0712.0418604
The article considers comparison of coating properties made of tool steel R6M5, created by means of gas-powder cladding with pulse and continuous laser emission. The renewal of cutting tools and equipment at machine-building factories is an urgent problem of production modernization and reduction of its costs. The laser gas-powder cladding technology allows to simplify the process of renewing and to make it local and precise. The authors investigate microstructure, microhardness, porosity and wear resistance of coatings made with pulse and continuous laser emission.
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