scholarly journals Application of Theoretical Design to Selection of TiNi-X Alloys with Both High Strength and Oxidation Resistance

2011 ◽  
Vol 75 (2) ◽  
pp. 110-114 ◽  
Author(s):  
Kazuhiro Matsugi ◽  
Yong-Bum Choi ◽  
Gen Sasaki
Keyword(s):  
Oxidation Resistance ◽  
High Strength ◽  
Theoretical Design ◽  
Selection Of

scholarly journals Advanced High Strength Steel in Auto Industry: an Overview

2014 ◽  
Vol 4 (4) ◽  
pp. 686-689 ◽  
Author(s):  
N. Baluch ◽  
Z. M. Udin ◽  
C. S. Abdullah
Keyword(s):  
Automotive Industry ◽  
High Strength Steel ◽  
Low Cost ◽  
High Strength ◽  
Direct Result ◽  
Advanced High Strength Steel ◽  
Geometrical Form ◽  
Cost Efficient ◽  
Safety Attributes ◽  
Selection Of

The world’s most common alloy, steel, is the material of choice when it comes to making products as diverse as oil rigs to cars and planes to skyscrapers, simply because of its functionality, adaptability, machine-ability and strength. Newly developed grades of Advanced High Strength Steel (AHSS) significantly outperform competing materials for current and future automotive applications. This is a direct result of steel’s performance flexibility, as well as of its many benefits including low cost, weight reduction capability, safety attributes, reduced greenhouse gas emissions and superior recyclability. To improve crash worthiness and fuel economy, the automotive industry is, increasingly, using AHSS. Today, and in the future, automotive manufacturers must reduce the overall weight of their cars. The most cost-efficient way to do this is with AHSS. However, there are several parameters that decide which of the AHSS types to be used; the most important parameters are derived from the geometrical form of the component and the selection of forming and blanking methods. This paper describes the different types of AHSS, highlights their advantages for use in auto metal stampings, and discusses about the new challenges faced by stampers, particularly those serving the automotive industry.

Nanomaterials and Nanocomposites Thermal and Mechanical Properties Modelling

2019 ◽  
pp. 234-256 ◽  
Author(s):  
Siddhartha Kosti
Keyword(s):  
Thermal Properties ◽  
Structural Properties ◽  
Base Material ◽  
High Strength ◽  
Mechanical And Thermal Properties ◽  
Thermal And Mechanical Properties ◽  
Weight Percentage ◽  
Structural Applications ◽  
Glass Frp ◽  
Selection Of

This chapter deals with the modelling of nanomaterial and nanocomposite mechanical and thermal properties. Enrichment in the technology requires materials having higher thermal properties or higher structural properties. Nanomaterials and nanocomposites can serve this purpose accurately for aerospace or thermal applications and structural applications respectively. The thermal system requires materials having high thermal conductivity while structural system requires materials having high strength. Selection of the material for particular application is very critical and requires knowledge and experience. Al, Cu, TiO2, Al2O3, etc. are considered for thermal applications while epoxy-glass, FRP, etc. are considered for structural applications. Modelling of these nanomaterials and nanocomposites is done with the help of different mathematical models available in the literature. Results show that addition of the nanoparticle/composite in the base material can enhance the thermal and structural properties. Results also show that amount of weight percentage added also affects the properties.

Nanomaterials and Nanocomposites Thermal and Mechanical Properties Modelling

2021 ◽  
pp. 180-199
Author(s):  
Siddhartha Kosti
Keyword(s):  
Thermal Properties ◽  
Structural Properties ◽  
Base Material ◽  
High Strength ◽  
Mechanical And Thermal Properties ◽  
Thermal And Mechanical Properties ◽  
Weight Percentage ◽  
Structural Applications ◽  
Glass Frp ◽  
Selection Of

This chapter deals with the modelling of nanomaterial and nanocomposite mechanical and thermal properties. Enrichment in the technology requires materials having higher thermal properties or higher structural properties. Nanomaterials and nanocomposites can serve this purpose accurately for aerospace or thermal applications and structural applications respectively. The thermal system requires materials having high thermal conductivity while structural system requires materials having high strength. Selection of the material for particular application is very critical and requires knowledge and experience. Al, Cu, TiO2, Al2O3, etc. are considered for thermal applications while epoxy-glass, FRP, etc. are considered for structural applications. Modelling of these nanomaterials and nanocomposites is done with the help of different mathematical models available in the literature. Results show that addition of the nanoparticle/composite in the base material can enhance the thermal and structural properties. Results also show that amount of weight percentage added also affects the properties.

An assessment into mechanical properties and microstructural behavior of TIG welded Ti-6Al-4V titanium alloy

2020 ◽  
Vol 10 (3) ◽  
pp. 281-292 ◽  
Author(s):  
Saurabh Dewangan ◽  
Suraj Kumar Mohapatra ◽  
Abhishek Sharma
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Weight Ratio ◽  
High Strength ◽  
Hardness Test ◽  
Content Type ◽  
Ti Alloys ◽  
Microstructure And Mechanical Properties ◽  
Grade 5 ◽  
Selection Of

PurposeTitanium (Ti) alloys are in high demand in manufacturing industries all over the world. The property like high strength to weight ratio makes Ti alloys highly recommended for aerospace industries. Ti alloys possess good weldability, and therefore, they were extensively investigated with regard to strength and metallurgical properties of welded joint. This study aims to deal with the analysis of strength and microstructural changes in Ti-6Al-4V (Grade 5) alloy after tungsten inert gas (TIG) welding.Design/methodology/approachTwo pair of Ti alloy plates were welded in two different voltages, i.e. 24 and 28 V, with keeping the current constant, i.e. 80 A It was a random selection of current and voltage values to check the performance of welded material. Both the welded plates were undergone through some mechanical property analysis like impact test, tensile test and hardness test. In addition, the microstructure of the welded joints was also analyzed.FindingsIt was found that hardness and tensile properties gets improved with an increment in voltage, but this effect was reverse for impact toughness. A good corroboration between microstructure and mechanical properties, such as tensile strength, hardness and toughness, was reported in this work. Heat distribution in both the welded plates was simulated through ANSYS software to check the temperature contour in the plates.Originality/valueA good corroboration between microstructure and mechanical properties, such as tensile strength, hardness and toughness, was reported in this study.

Life Extending Advanced Component Repairs — Field Operating Experience

2000 ◽  
Author(s):  
Lloyd A. Cooke
Keyword(s):  
Powder Metallurgy ◽  
Gas Turbine ◽  
Operating Experience ◽  
High Strength ◽  
Operating Environment ◽  
Repair Materials ◽  
New Generation ◽  
Filler Metals ◽  
Selection Of ◽  
Repair Techniques

Advanced repair technologies have been introduced to the gas turbine industry over recent years. An increasing selection of coating systems is available which can be tailored to the specific operating environment. Automated welding systems and the use of custom weld filler metals for enhanced component life provide a means of reliably welding the new generation of high strength turbine blade alloys. Powder metallurgy processes have been introduced as an alternative to welding and have been used to upgrade certain components by employing higher strength repair materials than the original castings. In the paper, these and other technologies are assessed based on engine operating experience with direct comparison to the conventional repair techniques which they have replaced.

On the Materials Requirements for a Solar Solid-Expansion Machine

2000 ◽  
Vol 122 (3) ◽  
pp. 154-157
Author(s):  
B. J. Brinkworth
Keyword(s):  
Figure Of Merit ◽  
High Strength ◽  
Solar Thermal ◽  
Low Alloy Steels ◽  
Expansion Engine ◽  
Alloy Steels ◽  
Thermal Histories ◽  
Engineering Alloys ◽  
Selection Of

An outline is given of the mechanical and thermal histories of the working substance for a generic stand-alone solar thermal solid-expansion engine. A Figure-of-merit for the selection of materials is devised and evaluated, showing that high-strength engineering alloys figure best for this duty, with the carbon and low-alloy steels a practical choice. [S0199-6231(00)00403-2]

Design of a Lightweight Truck Wheel

2015 ◽  
Author(s):  
Massimiliano Gobbi ◽  
Mario Guagliano ◽  
Giampiero Mastinu ◽  
Giorgio Previati ◽  
Andrea Finzi ◽  
...  
Keyword(s):  
Production Process ◽  
High Strength ◽  
Research Activity ◽  
New Production ◽  
Safety Standards ◽  
Current Production ◽  
Definition Of ◽  
Improve Fatigue Strength ◽  
Selection Of ◽  
Improve Fatigue

The presented research activity is focused on the lightweight construction of a of truck wheel, with the final aim of improving the energy efficiency in compliance with current safety standards. On the basis of the design of a truck wheel currently into production, the objective of reducing the wheel mass is achieved by adopting high-strength materials, optimizing the geometry, and developing a new production process. The approach used for the new wheel design is based on the selection of a proper mission of the vehicle and on the acquisition of the loading spectra defined by using a new measuring wheel. The information obtained is used during the structural analysis phase. Based on the current production process, a number of suitable materials have been selected. Innovative manufacturing processes have been considered for improving the fatigue life of the wheel. Shot peening has been considered as a method to improve fatigue strength. Moreover, the introduction of laser cutting and welding led both to more freedom in the definition of the geometry of the wheel and to the reduction of the effects of geometric notches due to the absence of weld beads. A dedicated indoor test rig was used for durability tests. These activities led to a new truck wheel with reduced mass that is currently in the experimental validation phase.

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