a review on fatigue design of heavy section en-gjs-400-18-lt ductile iron wind turbine castings

A review on fatigue design of heavy section EN-GJS-400-18-LT ductile iron wind turbine castings

A comprehensive review of fatigue behavior and fatigue design of heavy section wind turbine castings made of ductile iron EN-GJS-400-18-LT is performed. Common metallurgical defects that are affecting fatigue behavior of this material were studied. Review of different researches on quantitative effect of chunky graphite and micro structure on fatigue behavior of EN-GJS-400-18-LT was perform...

Literature search - Deteriorated Graphite Structures on Cast Iron Skins

The fatigue strength offerritic ductile iron, Grade EN-GJS-400-18U-LT. was determined for large section castings measuring 4 by 24 by 24 inches. Fatigue testing was conducted in bending fatigue in order to determine the influence of surface conditions on fatigue strength. Test specimens with various surface conditions were evaluated, including notched and un-notched specimens, as well as those ...

Effect of Melting Techniques on Ductile Iron Castings Properties

Ductile iron is one of the most important engineering materials, in view of its excellent castability, signifi cantly better mechanical properties and low cost [1, 2]. It represents the fastest growing segment of the iron market. In the medium term, it is to be expected that the market share of nodular iron will level off at 40 % to 45 % [3]. Achieving the full potential of ductile iron require...

The filtration of large grey and ductile iron castings

Filtration of mass produced automobile castings is widely and successful applied, less common and more difficult is the filtration of large castings heavier than 1.000 kg. The paper deals with the special problems of applying filtration to such castings including; filter selection, description of three special filtration gating system concepts, along with ten case studies are given.

Undercooling and nodule count in thin walled ductile iron castings

Effects of Silicon on Mechanical Properties and Fracture Toughness of Heavy-Section Ductile Cast Iron

The effects of silicon (Si) on the mechanical properties and fracture toughness of heavy-section ductile cast iron were investigated to develop material for spent-nuclear-fuel containers. Two castings with different Si contents of 1.78 wt.% and 2.74 wt.% were prepared. Four positions in the castings from the edge to the center, with different solidification cooling rates, were chosen for micros...