INFLUENCE OF HEAT TREATMENT AND DEFORMATION ON THE MICROSTRUCTURE AND MECHANICAL PROPERTIES Cu-Ni-Sn ALLOY
Journal Title: Journal of Mechanical Engineering Research & Developments (JMERD) - Year 2019, Vol 42, Issue 3
Abstract
This article present about studying on effect heat treatment and strain on mechanical properties of Cu-7Ni-7Sn alloy. This alloy is high elasticity alloy, advance characteristics of this alloy can obtain when associate heat treatment and deformation. The article ejected advance heat treatment and deformation behavior for its. Before processing hardness, strength, the elastic limit of this alloy have a small value. The hardness obtains about 90 – 95HB; the strength obtains about 200MPa; the elastic limit obtain about 100MPa.After heat treatment and deformation, hardness, strength, elastic limit of alloy ascend to multiple; the hardness obtains 294 – 302HB; the strength obtains 1000MPa; the elastic limit obtains 600 – 700MPa. This fact could explain by two mechanisms: deformation mechanism and spinodal transition. Deformation mechanism is to pull small grain lichen, increasing the strength of this alloy. Spinodal decomposition is a mechanism by which a solution of two or more components can separate into distinct regions (or phases) with distinctly different chemical compositions and physical properties. This mechanism differs from classical nucleation in that phase separation due to spinodal decomposition is much more subtle, and occurs uniformly throughout the material not just at discrete nucleation sites. The fineness of spinodal structures is characterized by the distance between regions of identical composition, which is of the order of 50 to 1000 Ao.
Authors and Affiliations
Nguyen Duong Nam
Keywords
Related Articles
- EP ID EP572325
- DOI 10.26480/jmerd.03.2019.102.105
- Views 62
- Downloads 0
SPECIFIC FEATURES OF RESEARCH AND DEVELOPMENT OF THE PASSIVE REDUNDANT SUBSYSTEMS OF THE AIRCRAFT WITH DUE CONSIDERATION OF TOLERANCES
The goal of this paper is to determine the specific features, which must be taken into consideration in the course of research and development of the passive redundant subsystems with due consideration of tolerances in t...
A REVIEW ON FUELS USED FOR MARINE DIESEL ENGINES
In the maritime industry, most commercial vessels use diesel engines as the main propulsion for propeller, generators or auxiliary equipment. They have consumed a very large amount of fossil fuels and produced high level...
INFLUENCE OF NICKEL ON THE MICROSTRUCTURE AND MECHANICAL PROPERTIES OF ALUMINUM COPPER ALLOY
This paper presents the results of Nickel component on the microstructure and mechanical properties of the aluminum-copper alloy. With the same heat treatment process (heated to 850oC quenching in water and tempering at...
ENERGY, ECONOMIC AND ENVIRONMENTAL IMPACT OF WASTE-TO-ENERGY IN MALAYSIA
National human population, economy development and advancement of technologies have led to a high demand of energy. Despite this, depletion of conventional fuels and global warming crisis are hindering the government to...
FERROFLUID LUBRICATION OF A LONGITUDINALLY ROUGH ROTATING CIRCULAR STEP BEARING
This investigation tries to examine the effect of magnetic fluid lubrication on the behaviour of a longitudinally rough rotating circular step bearing resorting to the stochastic model of Christensen and Tonder. The magn...