Results 51 to 60 of about 991 (221)

Precipitation‐Modulated Harmonic Architectures Enable Superior Strength–Ductility Synergy from Cryogenic to Elevated Temperatures in Nanostructured Alloys

Advanced Science, EarlyView.
Precipitation‐modulated recrystallization enables a programmable bimodal harmonic architecture in a high‐entropy alloy, delivering 1–2 GPa yield strength with >10% ductility from −196 °C to 700 °C. The resulting broad‐temperature robustness arises from the synergy of dual‐mode nanoprecipitation, harmonic core–shell topology, and temperature‐adaptive ...
Wei Li, Liangyin Xiong, Mengchao Niu, Junhua Luan, Wei Wang, Zengbao Jiao   +5 more
wiley   +1 more source

Effects of cold rolling on phase precipitation and phase transformation in a 2507 SDSS [PDF]

, 2011
In the present work 7 samples of UNS S32750 was cold rolled at different rates, analyzed in this state and also after the ageing for 2400s at 400 and 900°C.\nInvestigation was carry out with: OM SEM ( EBSD EDS) Magnetic tests: Forster, Permeameter ...
Bianchi, Marco
core  

Hierarchical Ordering Induced Ultrahigh Cryogenic Strength and Strain Hardening in a Ni2CoFeV Medium‐Entropy Alloy

Advanced Science, EarlyView.
A tri‐phase Ni2CoFeV medium‐entropy alloy with fcc, κ, and L12 phases achieves exceptional cryogenic strength‐ductility synergy at 77 K. It delivers a yield strength of 1.4 GPa, an ultimate tensile strength of 2.07 GPa and a tensile ductility of 28%.
Lei Gu, Wei Jiang, Qingzhong Mao, Xiang Chen, Yonghao Zhao   +4 more
wiley   +1 more source

Tribocorrosion Behavior of a Medium-Entropy Austenitic Stainless Steel in 3.5 wt.% NaCl: A Comparative Study with 304 and S31254 Stainless Steels

Lubricants
This study investigates the tribocorrosion behavior of 304 stainless steel (304SS), S31254 super austenitic stainless steel (S31254 SASS), and a medium-entropy austenitic stainless steel (MEASS) in 3.5 wt.% NaCl solution under sliding conditions.
Chun-Hao Wang, Shih-Yen Huang, Yu-Ren Chu, Peng-Shu Hsu, Hung-Wei Yen, I-Chung Cheng, Peng-Wei Chu, Yueh-Lien Lee   +7 more
doaj   +1 more source

Exploring the mechanism of solid-state transformation σ → γ during homogenization in 7Mo super austenitic stainless steel

Journal of Materials Research and Technology, 2023
Topologically close-packed phases (TCP phase), with ordered dense-stacked structure, realize the atomic diffusion at high temperatures by forming the defects. In this study, we investigated the σ → γ transformation process at high temperature in cast 7Mo
Runze Zhang, Jinshan He, Shiguang Xu, Fucheng Zhang, Xitao Wang   +4 more
doaj   +1 more source

Structurally Complex Precipitates Enhance Strength‐Ductility Synergy in a Duplex Medium Entropy Alloy

Advanced Science, EarlyView.
Strong‐yet‐ductile precipitation‐hardening alloys require novel microstructural complexity of precipitates in particularly at cryogenic condition, to constantly impart strain hardening of hard‐and‐brittle precipitates. The present work creates innovative structurally complex precipitates assembled with dispersed nanocores and a chemical‐heterogeneity ...
Shaohua Gao, Yang Yang, Xiaoxuan Fan, Jinyu Zhang, Shuaiyang Liu, Jiao Li, Hui Wang, Wenli Song, Gang Liu, Jun Sun   +9 more
wiley   +1 more source

sj-docx-1-pie-10.1177_09544089221095671 - Supplemental material for Parameter optimization and experimental validation of A-TIG welding of super austenitic stainless steel AISI 904L using response surface methodology

, 2022
Supplemental material, sj-docx-1-pie-10.1177_09544089221095671 for Parameter optimization and experimental validation of A-TIG welding of super austenitic stainless steel AISI 904L using response surface methodology by Kora T Sunny, Nanda Naik Korra, M ...
B Arivazhagan (12530957), Kora T Sunny (12530948), Nanda Naik Korra (12530951), M Vasudevan (12530954)   +3 more
core   +1 more source

Hierarchical Twin Networks Enable Exceptional Strength and Fracture Toughness in Titanium

Advanced Science, EarlyView.
A commercial‐purity titanium with hierarchical ultrafine twin structures delivers an exceptional combination of fracture toughness (KJIc) of 187 MPa·m1/2 and specific yield strength of 140 MPa·cm3·g−1, in which pre‐engineered high‐density twin boundaries stimulate massive and dislocations to blunt crack tip.
Xiao‐Wei Zou, Ting Zhu, En Ma, Wei‐Zhong Han   +3 more
wiley   +1 more source

Influence of Impact Angle on Mass Loss Behaviour of Super 304HCu Stainless Steel Under Air Jet Erosion Conditions

ITEGAM-JETIA
Super 304HCu is a boiler-grade advanced austenitic stainless-steel material, used in heat exchangers for its resistance to oxidation and corrosion at high temperatures.
M Balachandar, M Vinoth Kumar
doaj   +1 more source

Caracterização microestrutural e de propriedades mecânicas de chapas espessas de aço inoxidável duplex UNS 31803, submetido a ciclos térmicos de soldagem [PDF]

, 2001
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico.
Borsato, Karin Soldatelli
core