Results 101 to 110 of about 10,227 (256)

Microstructure, Defects, and Fatigue Response of High‐Strength Tool Steels

steel research international, EarlyView.
The martensitic tool steel family is designed for use in various working environments where they are subjected to repeatedly high mechanical loads. Despite the continuous upgrade of material´s microstructures through compositional development or processing techniques, defects remain a critical factor for the tool performance by leading to fatigue ...
Katerina Chantziara, Jens Bergström, Dimitrios Nikas, Mikael Thomas Grehk   +3 more
wiley   +1 more source

Tailoring Laser Powder Bed Fusion and Post‐Processing Parameters for JIS SKD61 Tool Steels: Surface Roughness, Microstructure, and Mechanical Properties

steel research international, EarlyView.
Laser powder bed fusion of JIS SKD61 tool steel is systematically optimized using a Taguchi design and ANOVA. Hatch spacing and layer thickness are identified as dominant parameters controlling surface roughness and tensile strength. Subsequent tempering at 600°C improves microstructural stability and mechanical performance, enabling high‐density SKD61
Masrurotin Masrurotin, Andi Ard Maidhah, Maziar Ramezani, Wojciech Macek, Cho‐Pei Jiang   +4 more
wiley   +1 more source

Pressure Influence on the AlCrFeNiMn/Graphite High Entropy Composite Microhardness

, 2017
During the last years, mechanical alloying technique for high entropy alloys (HEAs) has been more often approached due to the good homogenous chemical distribution and near net shape technology provided by the respectively process.
Cristian Aurelian Popescu, Ioana Csáki, Mihai Branzei, Gabriela Popescu, Alecs Andrei Matei, Roxana Trusca   +5 more
core   +1 more source

Toward the Application of Multiaxial Failure Criteria: Mean Stress Sensitivity of Carbide‐Rich, High‐Alloy PM‐HIP Tool Steels Under Axial and Torsional Cyclic Loading

steel research international, EarlyView.
This study quantifies axial and torsional long‐life fatigue (LLF) behavior of three carbide‐rich PM‐HIP tool steels, correlating LLF strength with intrinsic defect size and cleanliness, thereby extracting material‐specific mean stress sensitivities and Haigh diagrams.
Lennart Mirko Scholl, Frederik Tegeder, Tobias Hajeck, Alexander Bezold, Christoph Broeckmann   +4 more
wiley   +1 more source

Understanding process parameter-induced variability for tailoring precipitation behavior, grain structure, and mechanical properties of Al-Mg-Si-Mn alloy during solid-state additive manufacturing

Materials & Design
Additive friction stir deposition (AFSD), a solid-state additive manufacturing technique, has excellent industrial application potential, particularly for Al alloys.
Abhishek Pariyar, Evren Yasa, Adrian Sharman, Chandra S. Perugu, Liang Yuan, James Hughes, Dikai Guan   +6 more
doaj   +1 more source

Microstructure and bonding strength of Ni-based alloy coating [PDF]

China Foundry, 2006
A Ni-Cr-B-Si coating technique was developed and successfully applied on austenite grey iron substrate in a conventional resistance furnace under graphite powder protection.
LIU Qing, SHAO Wen-bao, WU Chun-jing
doaj  

Microstructure Characterization of Bending Effects in 304L Stainless Steel Cladded with Low‐Alloy Steel Weld

steel research international, EarlyView.
Prebending of 304L/Q345R cladded plates significantly alters the subsequent weld thermal cycle and modifies the local interfacial microstructure. Combined electron backscatter diffraction (EBSD) and microscopy analysis demonstrates that deformation twinning, martensitic transformation, and defect initiation are concentrated at the trimaterial junction,
Ali Fahem, Elsiddig Elmukashfi, Hong Dong   +2 more
wiley   +1 more source

Microhardness and local properties of high burnup UO2 fuel

, 2015
This work presents Vickers microhardness indentation and Young's modulus results obtained from light water reactor (LWR) UO2 fuel at burnup ≥ 60 GWd/tHM. The hardness profiles are compared with porosity distribution profiles measured by Scanning Electron
VAN UFFELEN Paul, MARCHETTI Mara, SCHUBERT Arndt, PAPAIOANNOU Dimitrios, CAPPIA Fabiola, RONDINELLA Vincenzo, MACIAN-JUAN Rafael   +6 more
core  

Estudo comparativo da dureza e presença de flúor e prata no esmalte decíduo humano hígido após aplicação do fluoreto de diamino a 30%: estudo "in vitro" / [PDF]

, 2000
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências da Saúde.Nesta pesquisa observou-se que a solução de fluoreto de diamino prata a 30% aplicada em esmalte decíduo incrementou a sua dureza, e esta esteve relacionada à ...
Chávez González, Bertha Angélica
core  

Effect of Double Annealing on the Microstructure and Mechanical Properties of a Medium Manganese Steel

steel research international, EarlyView.
A double intercritical annealing strategy is proposed to tailor the multiphase microstructure and mechanical response of a medium‐Mn steel. The treatment produces an ultrafine mixture of ferrite, martensite and multiple austenite populations with graded thermal and mechanical stability, formed through austenite reversion and controlled retransformation.
Mattia Franceschi, Jose A. Jimenez, Carlos Garcia‐Mateo, Radhakanta Rana   +3 more
wiley   +1 more source