Results 121 to 130 of about 4,302 (276)

Efeito do cobre e da deformação no efeito trip de um aço inoxidável austenítico AISI304, avaliado por diversos métodos de análise [PDF]

, 2013
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Ciência e Engenharia de Materiais, Florianópolis, 2013.A variação da fração volumétrica de martensita a' (fase ferromagnética) em função da ...
Lischka, Fernanda Torrens
core  

Influence of Heat Treatment and Scan Rotation on the Microstructure of Hot Work Tool Steel Manufactured using Laser Powder Bed Fusion

steel research international, EarlyView.
The study investigates the influence of heat treatment and scan rotation on the microstructure of a modified H13 tool steel manufactured using laser powder bed fusion. Key findings include the refinement of prior austenite grains (PAGs) due to recrystallization and carbide pinning, and the significant impact of scan rotation on the size distribution of
Negar Panahi, Fengxiang Lin, Christos Oikonomou, Mikael Grehk   +3 more
wiley   +1 more source

Additive Manufacturing of Hot‐Work Tool Steel by In Situ Alloying Using Laser Powder Bed Fusion and Directed Energy Deposition—Strategies to Improve Chemical Homogeneity

steel research international, EarlyView.
To support future alloy development a powder mixture is processed by laser additive manufacturing. The powder mixture containing Mo‐ and W‐rich tracers is processed by powder bed fusion using single and double laser exposure and by directed energy deposition which provides drastically enlarged melt pools.
Felix Großwendt, Sebastian Weber, Jonathan Lentz   +2 more
wiley   +1 more source

Mathematical models of dynamical martensitic transformations in shape memory alloys

, 1990
Mathematical models of dynamical martensitic transformations in shape memory alloys / K.-H. Hoffmann ; M. Niezgódka. - In: Journal of intelligent material systems and structures. 1. 1990. S.
Niezgódka, Marek, Hoffmann, Karl-Heinz
core   +1 more source

Recycling End‐of‐Life Solid Oxide Cell Interconnect Assemblies into Commercial‐Grade AISI 304 Stainless Steels

steel research international, EarlyView.
This study validates a recycling pathway for converting interconnect assemblies from end‐of‐life SOC stacks into commercial‐grade AISI 304 steels. Using scrap‐based steelmaking operations, austenitic cast steels with <4.0% δ‐ferrite are successfully produced.
Jeraldine Lastam, Shine‐Od Mongoljiibuu, Alexander Specht, Daniel Grüner, Dmitry Sergeev, Urs A. Peuker, Michael Müller, Ruth Schwaiger   +7 more
wiley   +1 more source

A Phase Field Approach for Martensitic Transformations and Crystal Plasticity

, 2014
This work is motivated by cryogenic turning which allows end shape machining and simultaneously attaining a hardened surface due to deformation induced martensitic transformations.
Aurich, Jan, Bhattacharya, Kaushik, Schmitt, Regina, Mayer, Patrick, Kirsch, Benjamin, Kuhn, Charlotte, Müller, Ralf   +6 more
core   +1 more source

A Comparative Study of Directed Energy Deposition‐Arc and Casting: Enhancing Mechanical and Thermal Properties of Hot‐Work Tool Steels

steel research international, EarlyView.
The study investigates the influence of DED‐Arc/M versus casting on the microstructure and material properties of X40CrMoV5‐1 (AISI H13) hot‐work tool steel. DED‐Arc/M yields finer microstructures, superior mechanical strength, and ductility, but slightly reduced thermal conductivity.
Ulf Ziesing, Aaron Berger, Hendric Schaefer, Sebastian Weber, Jonathan Lentz   +4 more
wiley   +1 more source

Hysteresis Phenomena and Their Modelling in Martensitic Transformation Thermodynamics

Успехи физики металлов, 2015
In the present review paper, we show that a successful description of the irreversible evolution of macroscopic variables during the martensitic transformations caused by hysteresis is possible with using a special type of differential equations with the
O. A. Likhachev, Yu. M. Koval
doaj   +1 more source

The effect of point defects on the martensitic phase transformation

CRPPSPCMaterials Science and Engineering A, 438-440 (2006) 102-108 - International Conference on Martensitic Transformations (ICOMAT) 2005, 13-17 June 2005, Shanghai ...
Abromeit, C., Schaeublin, R., Gotthardt, R., Wang, Y., Wang, J.   +4 more
core  

Minimal Surfaces and Topology of Martensitic Phase Transformations

Martensitic phase transformations and the shape memory effect have been extensively studied, with various theories proposed to understand their mechanisms.
Yin, Mengdi
core   +1 more source