MODIFICATION OF A SURFACE LAYER MICROSTRUCTURE FOR NODULAR CAST IRON USING CO2 LASER

Microstructure Formation and Fracturing Characteristics of Grey Cast Iron Repaired Using Laser

The repairing technology based on laser rapid fusion is becoming an important tool for fixing grey cast iron equipment efficiently. A laser repairing protocol was developed using Fe-based alloy powders as material. The microstructure and fracturing feature of the repaired zone (RZ) were analyzed. The results showed that regionally organized RZ with good density and reliable metallurgical bond c...

Failure Analysis of a Four Cylinder Diesel Engine Crankshaft Made From Nodular Cast Iron

The premature breakage in some four cylinder diesel engine crankshafts was reported. All crankshafts were failed from the same region. Failures had occurred in the first crankpin, the nearest crankpin to the flywheel. Dynamic analysis and finite element modelling were carried out to determine the state of stress in the crankshaft. FEM results revealed that the first crankpin fillet is the most ...

The Microsegregation Pattern of Aluminum and Silicon in the Matrix Microstructure of the Nodular Cast Irons

The Microsegregation Pattern of Aluminum and Silicon in the Matrix Microstructure of the Nodular Cast Irons

Casting and stress-strain simulations of a cast ductile iron component using microstructure based mechanical behavior

The industrial demand for increased component performance with concurrent reductions in component weight, development times and verifications using physical prototypes drives the need to use the full potential of casting and Finite Element Method (FEM) simulations to correctly predict the mechanical behavior of cast components in service. The mechanical behavior of the component is determined b...