Results 11 to 20 of about 229 (133)

Addressing Oxygen Embrittlement in Additively Manufactured Titanium via Cu-Mediated Interstitial Site Engineering. [PDF]

open access: yesAdv Sci (Weinh)
A novel “Cu‐mediated interstitial site engineering” strategy is introduced to thermodynamically stabilize hexagonal oxygen (hex‐O) configurations in oxygen‐containing titanium alloys. The hex‐O configuration activates multiple slip systems and enhances dislocation pinning via long‐range repulsion.
Lin X   +14 more
europepmc   +2 more sources

Enzymatic and microbial routes to bioplastics: The green chemistry frontier of biopolymers. [PDF]

open access: yesFEBS Open Bio
Microbial biosynthesis and engineered enzyme platforms are expanding the design space of polyhydroxyalkanoate bioplastics. By combining fermentation, PHA synthase engineering and cell‐free modular systems, tailored biodegradable polymers can be produced with tunable properties, supporting more sustainable materials and future circular bioeconomy ...
Gallo G   +4 more
europepmc   +2 more sources

Creep crack growth modelling of Grade 91 vessel weldments using a modified ductility based damage model

open access: yes, 2022
This paper reports creep crack growth modelling of Grade 91 vessel weldments at high temperature using a modified ductility-based continuum damage mechanics (CDM) model, which is based on the Kachanov-Rabotnov CDM and utilizing the concept of ductility ...
Sun, Wei   +9 more
core   +1 more source

Creep fatigue behaviour and the application of damage prediction models for 2.25Cr 1Mo steel.

open access: yes, 2023
Experimental creep fatigue data for normalised and tempered 2.25Cr 1Mo steel at 550 °C, with strain ranges of 0.8–1.2% and dwell times of 0–120 min, was generated to assess the accuracy of five different creep-fatigue life prediction models. The accuracy
Toppler, Karl
core   +1 more source

Numerical prediction of creep rupture life of ex-service and as-received grade 91 steel at 873 K [PDF]

open access: yes, 2021
Infallible creep rupture life prediction of high temperature steel needs long hours of robust testing over a domain of stress and temperature. A substantial amount of effort has been made to develop alternative methods to reduce the time and cost of ...
Nasrul Azuan, Alang   +3 more
core   +1 more source

Creep-Fatigue Life Prediction - A Ductility Model

open access: yes, 1995
Creep-fatigue life prediction methods are briefly reviewed. Phenomenological methods of life prediction are very popular, since they use several test and metallographic parameters in model formulation.
Tarun Goswami,   +2 more
core   +1 more source

Tough, Ductile, and Strong Hard‐Soft Cementitious Composite Enabled by Multi‐Material Additive Manufacturing

open access: yesAdvanced Materials, EarlyView.
Drawing inspiration from the layered hard‐soft architecture found in sea sponges, this work establishes a new framework for architected cementitious composites (ACC) through multi‐material additive manufacturing (MMAM) process. The integration of mortar and elastomer phases into layered architectures enables synergistic toughening mechanisms, including
Aimane Najmeddine   +5 more
wiley   +1 more source

Finite Element Modelling of Creep Rupture on Grade 91 Steel using Monkman-Grant Ductility based Damage Model

open access: yes, 2021
Failure strain is a main parameter used in the ductility exhaustion based damage model in which the accuracy of the prediction is dependent on its input value.
Sajuri, Z.   +7 more
core  

A microstructural sensitivity study of 316H austenitic stainless steel to inter-granular creep fracture

open access: yes, 2011
A preliminary sensitivity examination of the ductility exhaustion based creep damage prediction model, currently used in the R5 high temperature assessment procedure, showed that material property inputs had significant effects on damage prediction.
Smith, DJ   +7 more
core   +2 more sources

Advances in Magnesium‐Based Thermoelectrics: A Critical Review

open access: yesAdvanced Materials, EarlyView.
Magnesium‐based thermoelectric materials have emerged as promising candidates for low‐to‐mid‐temperature energy conversion due to their abundance, low cost, and competitive performance. This review summarizes recent advances in Mg3X2, MgAgSb, and Mg2X systems, covering transport mechanisms, fabrication strategies, stability challenges, and device ...
Li‐Min Zhang   +5 more
wiley   +1 more source

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