Heat transfer: a review of 2002 literature

Wire-like spray material (4) comprises iron, where: the spray material is formed together with carbon as a micro-alloy, so that bainite and martensite are developed during hardening of the spray material, and the alloy contains carbon (0.23-0.4 wt.%); silicon (0.7-0.98 wt.%); manganese (1.4-1.9 wt.%); chromium (0.75-0.95 wt.%); copper (0.2-0.25 wt.%); molybdenum (0.07-0.095); nickel (0.15-0.25 wt.%); aluminum (greater than 0.05 wt.%); vanadium (0.17-0.2 wt.%); nitrogen (0.005-0.013 wt.%); boron (0.0015-0.0025); and titanium (0.02-0.035 wt.%).

Wire-like spray material, useful for arc wire spraying and coating substrate, comprises iron, where the material is formed together with carbon as a micro-alloy, and the alloy contains e.g. carbon, silicon, manganese, chromium and copper

Review Heat transfer—a review of 2002 literature

Die Erfindung betrifft einen drahtformigen Spritzwerkstoff, insbesondere zum Lichtbogendrahtspritzen, umfassend im Wesentlichen Eisen, wobei der Spritzwerkstoff zumindest mit Kohlenstoff als Mikrolegierung derart gebildet ist, dass beim Erstarren des Spritzwerkstoffs Martensit, Bainit und Perlit entstehen, wobei in der Mikrolegierung Festschmierstoffanteile oder Legierungsbestandteile zur Bildung von Festschmierstoffanteilen vorgesehen sind, wobei folgende Legierungsbestandteile enthalten sind: · Kohlenstoff: 0,1 Gew.-% bis 0,28 Gew.-%, · Mangan: 1,4 Gew.-% bis 2,1 Gew.-%, · Silizium: 0,05 Gew.-% bis 0,3 Gew.-%, jeweils bezogen auf ein Gesamtgewicht.

Drahtförmiger Spritzwerkstoff und dessen Verwendung

http://dl.asminternational.org/itsc/proceedings-pdf/doi/10.31399/asm.cp.itsc1998p0263/441334/itsc1998p0263.pdf

Development of an Electric Arc Sprayed Self Lubricating Coating

A numerical program, which calculates the temperature profiles of electric arc spray formed (EASF) preforms, is coded on the basis of a shape forming model, droplet flight dynamics, and the boundary fitted coordinate (BFC) method for the calculation of heat transfer equations. Some thermophysical input data for the calculations, such as average droplet temperature impinging on the deposit surface, effective thermal conductivity of the deposit, and heat transfer coefficient at the interface and surface, are given by matching the experimental results with the numerical calculation results. Using the program, the temperature changes of the Fe-0 06%C steel ring deposit during the EASF process are calculated. The effects of the EASF parameters, such as substrate rotation velocity, average droplet temperature, and wire feedrate, on the temperature changes of the Fe-0.06%C steel ring preforms are also estimated.

H. J. Llewellyn

Papers

Development of an Electric Arc Sprayed Self Lubricating Coating

Semiempirical method for process analysis on electric arc spray forming of Fe-0.06%C steel rings