Effect of normalizing temperature on Microstructure of nodular cast iron
The as cast and normalized ductile iron samples were observed with Kearns vh-5000 ultra depth of field optical metallographic microscope. […]
The as cast and normalized ductile iron samples were observed with Kearns vh-5000 ultra depth of field optical metallographic microscope. […]
Take out large bimetallic samples from the upper plate of high chromium cast iron and carbon steel bimetallic lining with
The chemical composition of high chromium cast iron in the test is shown in the table, and the analysis of
The traditional wear-resistant casting lining plate is generally made of high strength steel, low alloy steel and other materials by
The test sample bar is taken from the cylindrical nodular cast iron test bar melted in the medium frequency induction
After the molten iron is poured into the crucible, the temperature of gray cast iron has a stable process, that
1.Test equipment The equipment used in the test includes: P-1 metallographic test polishing machine sx-4-10 high temperature box resistance furnace,
Thermoelastic and plastic models are used to calculate the thermal stress in the forming process of bimetal casting liner. The
The thermal fatigue resistance of materials is closely related to the tensile strength. Figure 1 shows the fracture morphology of
When studying the effect of carbon content on the thermal fatigue performance of laser bionic gray cast iron, the graphite
Generally speaking, the eutectoid transformation starts from the formation of cementite sheet at the austenite grain boundary. The formation and
The micro analysis of the worn surface of tractor track shoe is of great significance to study its wear characteristics
In the process of lining plate forming, there are both heat absorption and cooling processes. During the heating process, the
Austenite and graphite will precipitate in the solidification process of nodular iron casting. The crystallization of austenite will cause shrinkage,
In order to reduce the casting defects of shrinkage cavity and porosity, pour a quincunx ingot sample of 10kg each.
In the solidification process of Hypereutectic nodular iron casting, when the temperature is lower than the graphite liquidus, the primary
Change trend of white mouth width of triangular test piece: 5.5mm; 4.6mm ; 3.8mm; All white mouth; All white mouth
The microstructure, mechanical properties and heat treatment process of high chromium cast iron were studied. A composite modifier composed of
Based on the study of gray cast iron brake drum, through the study of various brake drums, it is found
The prediction of shrinkage defects in sand castings during solidification is mainly realized by using shrinkage defect criterion. Shrinkage porosity
According to the outer contour, the eutectic group of gray cast iron can be divided into three types: spherical eutectic
Of low carbon equivalent gray cast iron modified by rare earth α- The lattice constant of Fe is measured by
It can be seen from the measurement results of free linear shrinkage and its corresponding relationship curve in the table
Figure 1 shows the microstructure changes of gray cast iron matrix and unit without thermal fatigue and 300 thermal cycles.
The cylinder heads of high-speed and heavy-duty marine diesel engines are mostly high toughness ductile iron (see Figure 1). The
1. Base metal structure of different graphite types Figure 1 shows the graphite type of no.a-no.e, and its chemical composition
The hardness of low carbon equivalent gray cast iron treated with rare earth is also compared with HT250 inoculated with
When studying the performance of gray cast iron brake drum, thermal fatigue makes the material crack, but the brake drum
The flaw detection in the finishing workshop is mainly to detect the superficial cracks of steel castings after quenching and
Gray cast iron is a type of cast iron that has a microstructure characterized by graphite flakes in a matrix