搜索结果: 1-11 共查到“冶金工程技术 Ductile iron”相关记录11条 . 查询时间(0.046 秒)
Influence of the section size and holding time on the graphite parameters of ductile iron production
ductile iron section size microstructure
2009/10/23
This work was conducted to establish the conditions required to produce a desirable structure of the castings of various section sizes. This investigation was focused on the study of the influence of ...
Analysis of fracture mechanism in austenitic ductile iron with 30%Ni after impact test
Austenitic nodular graphite cast iron Impact energy Tensile strength,
2011/3/17
The study presents the results of impact tests carried out on austenitic ductile iron with 30% Ni. The examined material was subjected to dynamic loads within a wide range of temperatures from (–196°C...
Purpose: Thixoability of the ASTM A536 nodular cast iron is analyzed, it meaning its ability to hold a thixotropic semi-solid state and to be formed as such. Thixoability can be characterized by the s...
The influence of selected elements upon mechanical properties of ductile iron EN-GJS-500-7
Mechanical properties Ductile iron Chemical composition Regression analysis
2011/3/15
On the basis of chemical composition and mechanical properties analyses of EN-GJS-500-7 spheroidal graphite cast iron (as per PN-EN 1563 standard), an attempt to determine the relations between the ch...
Castability of ductile iron in thin walled castings (TWDI)
Castability Archimedes spiral Thin wall castings Ductile iron
2011/3/15
In work it has been presented results of influence of pouring temperature (Tp) and carbon equivalent (CE) on castability of ductile iron in thin walled castings with wall thickness of 1, 2 and 3 mm, r...
Austempering transformation kinetics of austempered ductile iron obtained by Mössbauer Spectroscopy
Austempered ductile iron Mö ssbauer effect Microstructure Austenite Ferrite
2011/3/15
The composition of metallic matrix in ductile iron as-cast and after austempering at temperatures of 280, 330 and 380oC (ADI) was examined.
Mechanisms and mechanics of porosity formation in ductile iron castings
Casting defects Ductile cast iron Porosity formation Feeding
2011/3/11
Shrinkage defects in ductile iron castings can be of two basic types: shrinkage cavities associated with the liquid contractionprior to the expansion period of the iron as well as the porosity, which ...
Structural gradient in a thin wall casting of ductile iron
Thin wall ductile iron Structure Gradient
2011/3/11
In this paper a experimental and theoretical structural analysis of thin walled casting made of ductile iron is presented. The work shows that these castings posses a non-homogenous gradient structure...
Thermal analysis of ductile iron in thin walled casting
Thermal analysis Thin wall castings Archimedes spiral
2011/3/11
Hypereutectic ductile iron was cast in self hardening moulding sand to produce castings with the shape of Archimedes spirals and with wall thickness of 1, 2 and 3 mm. Inmould technique was used to pro...
Calorimetric examinations of austempered ductile iron ADI
Scanning calorimeter Temperature Heating Cooling
2011/3/11
The study presents the results of calorimetric examinations during heating and cooling of austempered ductile iron ADI after austempering at temperatures of 280, 330 and 380oC. The samples for examina...
EFFECT OF NITROGEN ON STRUCTURE AND MECHANICAL PROPERTIES OF DUCTILE IRON WITH SMALL ADDITIONS VANADIUM AND NIOBIUM
Mechanical properties Ductile iron Structure Nitrides Carbides
2011/3/10
Results of investigations of influence of small additions of vanadium (about 0,08 and 0,12 % V) and niobium (about 0,05 and 0,16% Nb) as well as nitrogen (32 - 58 ppm.) on mechanical properties and st...