Results 41 to 50 of about 259,059 (214)

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

open access: yessteel 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   +4 more
wiley   +1 more source

Plasma assisted nitriding for micro-texturing onto martensitic stainless steels*

open access: yesManufacturing Review, 2015
Micro-texturing method has grown up to be one of the most promising procedures to form micro-lines, micro-dots and micro-grooves onto the mold-die materials and to duplicate these micro-patterns onto metallic or polymer sheets via stamping or injection ...
Katoh Takahisa   +2 more
doaj   +1 more source

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

open access: yessteel 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   +2 more
wiley   +1 more source

Tailored Hardening and Isothermal Bainitizing of Additively Manufactured Nitrogen‐Enhanced Martensitic Chromium Steel

open access: yessteel research international, EarlyView.
Tailored heat treatments transform additively manufactured high‐nitrogen martensitic Cr steel from austenitic as‐built condition to high‐hardness states. Isothermal bainitizing at 250°C generates an ultrafine nanostructure and achieves higher hardness than conventional hardening and tempering, highlighting a promising postprocessing route for laser ...
Philip König   +2 more
wiley   +1 more source

Laser Beam Welding of Stainless Steels [PDF]

open access: yes, 2012
Obiettivo principale di questa tesi di dottorato è quello di studiare la saldatura laser degli acciai inossidabili. Durante gli esperimenti un laser Nd-YAG in onda continua da 1.1kW è stato utilizzato per saldare rispettivamente acciai martensitici in ...
KHAN, MOHAMMAD MUHSHIN AZIZ
core   +1 more source

A Link between Neutron and Ion Irradiation Hardening for Stainless Austenitic and Ferritic-Martensitic Steels

open access: yesMetals
Radiation hardening is studied for stainless austenitic and ferritic-martensitic chromium steels after ion and neutron irradiation at various temperatures. Austenitic and ferritic-martensitic steels irradiated up to 30 dpa in various nuclear reactors and
Boris Margolin   +2 more
doaj   +1 more source

Investigation of Serrated Flow in Intercritically Annealed Medium Manganese Steel by In Situ Synchrotron X‐Ray Diffraction

open access: yessteel research international, EarlyView.
Serrations and stepwise austenite phase transformation were observed in cold‐rolled and annealed medium manganese steels. By in situ XRD experiments, these two phenomena were studied simultaneously. The results show that DSA leads to the creation of PLC bands and load drops in the specimen.
Shahroz Ahmed   +6 more
wiley   +1 more source

Predicting the Ms temperature of lean alloyed ferritic–austenitic stainless steels

open access: yesJournal of Materials Research and Technology
A set of laboratory hot-rolled and thermally cycled 19–22 wt% Cr lean alloyed ferritic–austenitic stainless steels were studied with respect to calculated equilibrium austenite composition and experimental martensite start (Ms) temperature.
Sampo Uusikallio   +4 more
doaj   +1 more source

Effect of heat treatment on micro structure, hardness, high temperature oxidation resistance of martensitic stainless steel 13Cr3Mo3Ni-cast

open access: yesTeknik, 2019
This paper reports the effect of heat treatment on microstructure, hardness and high-temperature oxidation resistance of martensitic stainless steels13Cr3Mo3Ni-cast.
Moch Syaiful Anwar   +5 more
doaj   +1 more source

Influence of Heat Treatments on the Impact Toughness of a Ti-stabilized 12%Cr Supermartensitic Stainless Steel [PDF]

open access: yesMaterials Research, 2017
The supermartensitic stainless steels (SMSS) are a relatively new class of corrosion resistant alloys developed to obtain a better combination of weldability, strength, toughness and corrosion resistance than conventional martensitic stainless steels ...
Sérgio Souto Maior Tavares   +4 more
doaj   +2 more sources

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