Effects of Heat Treatment on Microstructure and Mechanical Properties of Die Cast Al-Cu Alloy with High Strength and Ductility;

In order to improve the mechanical properties of die cast aluminum alloy, trials of study on die cast and heat treatment of Al-Cu alloy which is of high strength and ductility have been carried out.

Development of Microalloyed Intragranular Ferrite Steel With High Strength and Toughness;

A Study on Decarburization Trend of New High Strength and Toughness Spring Steels 40T and 44T;

The structure formation factor S of 17 high strength toughness steels were calculated on the basis of the empirical electric theory of solids and molecules.

The structure formation factors S were calculated from 19 groups of experimental data of a new high strength toughness steels on the basis of the empirical electrionic theory of solids and molecules, and 16 groups of which selected randomly were applied to train with BP network of artificial neural networks and other three groups were used to examine.

The ageing process of high strength high fracture toughness steel G99 were studied by Mossbauer spectroscopy.

The electronic structure of austenite of high strength and high toughness steel was investigated by the recursion method in the tight binding approximation.

The high strength and high toughness hardfacing covered electrode to the medium-high carbon alloy steel surface' repair was put forward in this paper.