Results 71 to 80 of about 898 (196)
Heat Treatment Effects on Microstructures and DBTT of F82H Steel Doped with Boron and Nitrogen
MATERIALS TRANSACTIONS, 2005 Effects of doping with 60 ppm B and/or 200 ppm N and heat treatments on the microstructures and the ductile-brittle transition temperature (DBTT) have been studied for ferritic/martensitic steel F82H. Prior austenitic grain size of standard F82H decreased from about 120 to 30 μm and also the DBTT decreased by about 50°C when the normalizing ...
Okubo, Nariaki +5 more
openaire +2 more sources
Advanced Functional Materials, Volume 34, Issue 51, December 16, 2024.Heterostructured materials (HSMs) are becoming an emerging strategy for superior mechanical properties of metallic materials. Comprehensive evidence is necessary to substantiate their feasibility. This study provides an extensive review of experimental results from worldwide research groups across titanium, magnesium, aluminum, copper, steel, and ...
Xinxin Dong +9 more
wiley +1 more source
Recent Improvements in Size Effects Correlations for DBTT and USE of Ferritic Steels
, 1993 Currently available correlations for the effects of specimen size on the USE were developed for relatively ductile steels and will not serve as well when the steels become embrittled.
Garner, F. A. +3 more
core +1 more source
Orientation‐dependent mechanical responses in molybdenum‐rhenium alloys evaluated via micro‐pillars
Engineering Reports, Volume 6, Issue 10, October 2024.Orientation‐dependent compressive properties are found in Mo‐14Re and Mo‐42Re, but are not found in Mo and Mo‐5Re, which may be attributed to activated multi‐slip planes as increased Re. Solid solution effect of Re not only rely on orientations, but also on Re content. Softening effect occurs in both [100] and [110] Mo‐5Re.
Hailong Xu +5 more
wiley +1 more source
The Influence of Mo Content and Annealing on the Oxidation Behavior of Arc‐Melted Cr–xMo–8Si Alloys
Advanced Engineering Materials, Volume 26, Issue 17, September 2024.Cr–xMo–8Si alloys (x = 10, 20, and 25 at%) show high potential for a new class of lightweight refractory alloys for high‐temperature applications. Especially worthwhile of further development is the Cr–25Mo–8Si alloy with extremely low mass gain and continuous SiO2 subscale formation, preventing internal oxidation.
Lisa Koliotassis +2 more
wiley +1 more source
Influence of preheating on tungsten damage under pulsed hydrogen plasma exposure
Nuclear Materials and EnergyPreheated tungsten plate behavior under multiple pulsed hydrogen plasma irradiations in the PW-7 plasma accelerator was investigated. The preheating temperature was 973 K, which is above the ductile to brittle transition temperature (DBTT ≈ 673 K).
A.B. Tazhen +4 more
doaj +1 more source
DBTT Reduction Enabled by SiO2-Bearing Flux in Submerged Arc Welds
Welding JournalThe ductile-brittle transition temperature (DBTT) plays a critical role in determining the integrity of welded structures under common low-temperature service conditions. Fluxes are proven effective agents that significantly alter weld compositions and resulting microstructures.
CHAO HAN +4 more
openaire +1 more source
Crack‐Free Tungsten Fabricated via Laser Powder Bed Fusion Additive Manufacturing
Advanced Functional Materials, Volume 34, Issue 12, March 18, 2024.Additive manufacturing of tungsten (W) is challenging due to its high melting point, and brittleness from GB oxides. In this study, the processing of W through laser powder bed fusion is investigated. Parts are fabricated under argon (Ar) and nitrogen (N2).
Tejas Ramakrishnan +6 more
wiley +1 more source
, 1998 Mode I cracks introduced in Si at the ductile-brittle transition temperature (DBTT) have been examined extensively using transmission electron microscopy.
null Suprijadi, H. Saka
core +1 more source
Hump on upper shelf of ductile-brittle transition temperature curve of a plain carbon steel [PDF]
, 2011 The ductile—brittle transition temperature (DBTT) in a plain carbon steel has been studied in a series of Charpy V notch samples. Both non-standard and standard samples were used in the as drawn, normalised and annealed conditions.
Ebrahim, M. +7 more
core +1 more source