Results 31 to 40 of about 1,670 (229)

Evaluation of residual stress near the weld overlay cladding by welding and post-weld heat treatment

Welding International, 2010
Austenitic stainless steel is welded as a cladding on the inner surface of a reactor pressure vessel (RPV) made of low alloy steel. In order to assess the structural integrity of the RPV precisely, the residual stress distribution caused by weld-overlay cladding and post-weld heat treatment (PWHT) is evaluated.
UDAGAWA, Makoto, KATSUYAMA, Jinya, NISHIKAWA, Hiroyuki, ONIZAWA, Kunio   +3 more
openaire   +2 more sources

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth, Tomáš Babinský, Jan Lars Riedel, Wen Hao Kan, Aijun Huang, Martin Heilmaier, Ivo Šulák   +6 more
wiley   +1 more source

Characterization of weld fusion zone for TIG welded P91and P92 steels [PDF]

Archives of Metallurgy and Materials, 2018
The welding of nuclear grade P91 and P92 steel plate of thickness 5.2 mm were performed using the autogenous tungsten inert gas (TIG) welding process.
C. Pandey, M. Mohan Mahapatra, P. Kumar, P. (Prakesh) Kumar, J.G. Thakare   +4 more
doaj   +1 more source

The effect of Nd:YAG laser pulse duration and post-weld heat treatment on the microstructure and mechanical properties of laser-welded NiTi shape memory alloy

Journal of Materials Research and Technology, 2023
The heat input is the most critical factor in pulsed Nd:YAG laser welding and affects the microstructure and mechanical behavior of the welded alloys. NiTi alloy has been used for various applications such as medical equipment and MEMS due to its unique ...
Ali Rasouli, Homam Naffakh-Moosavy
doaj   +1 more source

Advances in Sustainable and Wearable Textile Based Soft Robotics

Advanced Functional Materials, EarlyView.
This Review examines advances in wearable textile‐based soft robotics, focusing on sustainable materials, integrated sensing, and scalable actuation. It discusses manufacturing and system integration across healthcare, assistive robotics, prosthetics, and human–machine interfaces, and highlights key challenges in circular design, including life‐cycle ...
Zahir Abbas, Marzia Dulal, Sophia K. Novoselov, Victoria K. Novoselov, Kostya S. Novoselov, Shaila Afroj, Nazmul Karim   +6 more
wiley   +1 more source

Improvement of the Mechanical Properties of the Diffusion-Bonded 2024 Aluminum Alloy through Post-Weld Heat Treatments

Metals, 2022
In this study, 2024 aluminum alloy was diffusion bonded to identify the effect of the bonding temperature, applied pressure, and heating time on the microstructure, hardness, and bonding strength.
Meng-Ting Chiang, Kuan-Yu Chiu, Po-Ching Wu, Shih-Ying Chang, Yu-Kai Sun, Tung-Han Chuang   +5 more
doaj   +1 more source

Study on Welding Process of Solid Phase Welding by Post Heat Treatment

Journal of the Japan Welding Society, 1971
固相圧接における後熱温度,後熱時間,接合変形度の影響を検討した結果,次のような結論を得た.1.後熱処理による接合状況の進行過程は,後熱温度,後熱時間,接合変形度によって左右され,アレニウスの式を満足する.2.後熱初期の回復現象によって起る接合部に残留する弾性応力の緩和と,さらには後続する再結晶現象によって,接合境界の原子の移動,再配列が進み接合強さは向上する.3.接合境界状態の改善と母材の軟化現象との総合効果によって,継手の機械的性質は決定し,材質,接合変形度,温度によって定まるほぼ一定の後熱時間で最大値がえられた.4.後熱温度が高くなると,空洞の球状化および集合が起る結果,軟化によって低下した接合強さに再び増加が認められ,接合変形度の差の影響はなくなる傾向にある.
Hashimoto, Tatsuya, Ohashi, Osamu
openaire   +2 more sources

Biodegradable and Biocompatible Functional Polymers for Biomedical Applications

Advanced Functional Materials, EarlyView.
Biodegradable and biocompatible functional polymers integrate electrical, mechanical, and stimuli‐responsive functionalities while enabling programmed degradation under physiological conditions. This review introduces recent advances in conductive, shape‐memory, self‐healing, photocurable, and adhesive polymer systems, emphasizing material design ...
Won Bae Han, Shuvra Mondal, Sungkeun Han, Chan‐Hwi Eom, Venkata Ramesh Naganaboina, Suk‐Won Hwang   +5 more
wiley   +1 more source

Mechanisms of Degradation in Li‐Ion Batteries Under Low Temperature Exposures

Advanced Functional Materials, EarlyView.
Low‐temperature exposures, or freeze‐thaw cycles, are observed to significantly accelerate the degradation of Li‐ion batteries. A combination of electrolyte phase separation and mechanochemical stress leads to reversible and irreversible performance losses.
Mihir Ojha, Shervin Alaei, Jayanth Ramamurthy, Luke P. Lounsbury, Md Mahdi Ul Ishtiaque, Stuart Leland, Niraj P. Atale, Sourav Das, Siddhartha Pathak, Pranav Shrotriya, Steve W. Martin, Todd A. Kingston, Cary L. Pint   +12 more
wiley   +1 more source

Improved Microstructure Evolution and Corrosion Resistance in Friction-Welded Dissimilar AISI 1010/D3 Steel Joints Through Post-Weld Heat Treatment

Journal of Manufacturing and Materials Processing
To achieve the desired material properties of automotive components made by friction welding, post-weld heat treatment is critical. The high temperatures encountered during the friction welding of steels can lead to changes in the microstructure ...
Rajesh Jesudoss Hynes Navasingh, T. Packiaraj Rajendran, Maria P. Nikolova, C P Goldin Priscilla, Piotr Niesłony, Krzysztof Żak   +5 more
doaj   +1 more source