Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 9 of 9 for “"Advanced high strength steel"”.
-
ADVANCED HIGH STRENGTH STEEL THROUGH PARAEQUILIBRIUM CARBON PARTITIONING AND AUSTENITE STABILIZATION
… in quenched and partitioned (QP) 0.3C-4.0Mn steels subjected to dual stabilization heat treatments (DSHT). The temperature of the second quench in the DSHT process successfully played an essential role in the retained austenite contents at carbon partitioning temperatures above 450¿¿C. A …
-
Material substitution in electric vehicle manufacturing : comparing advanced high strength steel and aluminum
In electric vehicle production, the high cost of battery manufacture motivates investment in energy efficient and lightweight vehicle designs. A common lightweighting strategy is to substitute Advanced High Strength Steel (AHSS) or aluminum in place of traditional mild steel. Aluminum is a lighter …
-
Experimental characterization and modeling of the plastic behavior of a thirdgeneration advanced high strength steel sheet
The third generation of the advanced highstrength steels (AHSS) has attracted the automotive industry attention owing to its good compromise between the formability and production cost. The current development stage of these steels so far has few products available on the market, as well as little …
-
Effect of Processing Path on Microstructure and Mechanical Properties of a Low Carbon, Low Alloy Advanced High Strength Steel
… to this requirement, several variants of advanced high strength steels (AHSS) have been developed with the latest focus on 3rd generation AHSS. In this work, microstructural evolution and mechanical properties of an automotive grade low carbon, low alloy steel under air-cooled, …
-
Design of a hydraulic bulge test apparatus
… Laboratory, MIT, for the testing of Advanced High Strength Steel. The hydraulic bulge test was identified as the most economical solution. The equipment was designed to accommodate material strength of up to 1000MPa with plate thickness between 1.0mm and 1.8mm. The design process is …
-
Understanding the Phase Transformations of a Medium Manganese Steel as a Function of Carbon Content
Medium-manganese steels (5-12 wt%) are candidates for third-generation advanced high strength steel (AHSS). Potential applications for these steels are centered around the automotive industry due to their combination of high tensile strength, high tensile ductility, and low alloying cost. Previous …
-
Effect of non-linear loading paths on sheet metal fracture : large strain in-plane compression followed by uniaxial tension
Advanced high strength steel sheets are rapidly entering the transport industry, as their high strength to weight ratio helps improving fuel and costs efficiency. The early ductile fracture of these materials limits their formability and crash-worthiness. A phenomenological criterion to predict …
-
Ductile fracture at intermediate stress triaxialities : experimental investigations and micro-mechanical modeling
… state on the onset of ductile fracture of an Advanced High Strength Steel (AHSS), covering development of new experimental procedures, material characterization and phenomenological as well as micro-mechanical modeling of the onset of fracture. Based on an extensive multi-axial experimental …
-
Hot ductility of TWIP steels
TWIP (Twining Induced Plasticity) steel is very promising AHSS (Advanced High Strength Steel) grade owing to its superior toughness and ductility. Recently it has attracted the interest of the automotive and steelmaking industries, as the need for reducing weight to provide better fuel efficiency …