Results 131 to 140 of about 1,132,490 (287)

Grey Cast Iron and Ductile Iron Melting Without Pig Iron [PDF]

, 2012
Przedstawione w artykule zagadnienia w sposób pośredni, ale bardzo znaczący dotykają problematyki ochrony środowiska. Obejmują one tematykę wytwarzania żeliwa szarego i sferoidalnego wyłącznie na bazie złomu stalowego. Eliminacja lub ograniczenie surówki
Jezierski, J., Bartocha, D., Janerka, K., Szajnar, J.   +3 more
core  

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

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

Strain Rate and Temperature Insensitiveness of Notch-bend Strength for High Si Ductile Cast Iron

, 2016
The notch-bend strength (σb,max) was investigated for High Si Solid Solution Strengthened Ferritic Ductile Cast Iron (EN-GJS-500-14) with varying the strain rate at room temperature. The notch-bend strength was also compared with the conventional ferrite-
Kai, Nobuaki, 野田, 尚昭, Sano, Yoshikazu, サノ, ヨシカズ, ノダ, ナオアキ, Umetani, Takuo, Ikeda, Tomohiro, Noda, Nao-Aki, 佐野, 義一   +8 more
core   +1 more source

Influences of Cleanliness, Carbide Size, Hardness, and Residual Stresses on Long‐Life Fatigue Strength and Crack‐Initiation Mechanisms in Carbide‐Rich Cold‐Work Tool Steels Using Normalized S–N Curves and Database‐Driven Validation of Murakami's √Area Model

steel research international, EarlyView.
Rotating‐bending fatigue tests on AISI D2 and AISI A11 quantify how cleanliness, carbide structure, hardness, and fabrication‐induced compressive residual stresses govern long‐life fatigue at NG = 107 cycles. Statistical fracture‐surface analysis and extreme‐value √area statistics link crack‐initiators to LLF strength.
Lennart Mirko Scholl, Frederik Tegeder, Dhirendar Chauhan, Bengt Hallstedt, Tobias Hajeck, Alexander Bezold, Christoph Broeckmann   +6 more
wiley   +1 more source

Phase Transformation Behavior of Continuously Cooled Fe–C–V–(Mo) Alloys

steel research international, EarlyView.
Additions of vanadium and molybdenum microalloying are shown to reshape phase transformations in clean low‐carbon steels. By tracking microstructural shifts during continuous cooling, the work uncovers the correlation between transformation kinetics, ferrite morphology, and hardness.
Anastasiya Tselikova, Jannik Zuraszek, Ulrich Krupp, Rolf Schmidt, Hardy Mohrbacher, Alexander Gramlich   +5 more
wiley   +1 more source

THE HIGH-TEST CAST-IRON INDICATOR

Литьë и металлургия, 2004
It was concluded that the ultrasonic techniques are sensitive to the changes in the graphite morfology, thus they can also be used to predict the mechanical properties of cast iron.
G. E. Konovalov, A. R. Bajev, N. N. Gilj, N. I. Bestuzhev, P. S. Gurchenko   +4 more
doaj  

Influence of Solidification Conditions on the Microstructure of Laser-Surface-Melted Ductile Cast Iron. [PDF]

Materials (Basel), 2020
Janicki D, Górka J, Kwaśny W, Pakieła W, Matus K.   +4 more
europepmc   +1 more source

Seleção de inoculantes para refino de liga hipereutética de ferro branco de alto cromo [PDF]

, 2014
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Ciência e Engenharia de Materiais, Florianópolis, 2014.Os carbonetos primários, presentes em ligas hipereutéticas de ferro fundido branco de alto ...
Preti, Orlando
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