Results 41 to 50 of about 74,881 (288)

Residual Stress Analysis for Repair Welding in Dissimilar Metal Weld [PDF]

Journal of Welding and Joining, 2009
Alloy 600 and Alloy 82/182 materials have been used widely in PWR plants. But these materials are known to be susceptible to PWSCC(Primary Water Stress Corrosion Cracking). Recently, there have been several PWSCC events in major components due to repair welding, because repair welding in the dissimilar metal welds during the construction increases ...
Seung-Gun Lee, Tae-Eun Jin, Sung-Sik Kang, Dong-Il Kwon   +3 more
openaire   +1 more source

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

Advanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar, Dhanadeep Dutta, G. Bharat Reddy   +2 more
wiley   +1 more source

Laser Metal Powder Deposition of Titanium Microalloyed HSLA Steel FeC0.12Si0.25Mn1.3

Advanced Engineering Materials, EarlyView.
This study investigates the additive manufacturing of titanium‐doped high‐strength low‐alloy (HSLA) steel via laser metal deposition. It reveals distinct process‐structure relationships for elemental powder blends compared to prealloyed feedstocks.
Olaf Stelling, Matthias Steinbacher, Nils Ellendt   +2 more
wiley   +1 more source

Achieving defect-free repair in ZM6 magnesium alloy through cold metal transfer welding combined with preheating

Journal of Materials Research and Technology
The application of Cold Metal Transfer (CMT) welding technology for defect repair in cast magnesium alloys presents substantial research significance.
Qihao Chen, Zhien Chen, Bolun Dong, Sanbao Lin, Yangyang Fan, Xiaoyu Cai, Faming Shen, Miao Wang, Liping Nie   +8 more
doaj   +1 more source

Microstructure and mechanical properties of weld of 15Cr2Mo1 heat resistant steel repaired by NiCrFe filler alloy

Cailiao gongcheng, 2023
Aiming at the problem that surface cracks occur in the service of 15Cr2Mo1 heat resistant steel welds, NiCrFe alloy which was similar to the usage scenarios of this steel was employed to repair welds with different groove depths simulating crack depths ...
CHANG Zijin, YAN Jialing, QI Yanchang, CUI Bing, CAI Xiaotao   +4 more
doaj   +1 more source

A52M/SA52 Dissimilar Metal RPV Repair Weld: Experimental Evaluation and Post-Weld Characterizations

Volume 6: Materials and Fabrication, 2020
Abstract Aging management of the existing fleet of nuclear power plants is becoming an increasingly important topic, especially as many units are approaching their design lifetimes or are entering long-term operation. As these plants continue to age, there is an increased probability for the need of repairs due to extended exposure to a ...
Virkkunen, Iikka, Peltonen, Mikko, Siren, Henrik, Nevasmaa, Pekka, Huotilainen, Caitlin, Keinanen, Heikki, Kuutti, Juha, Lambai, Aloshious, Mohanty, Gaurav, Honkanen, Mari   +9 more
openaire   +3 more sources

Influence of an Argon/Silane Atmosphere on the Temperature of a Thermal Plasma

Advanced Engineering Materials, EarlyView.
The influence of a silane‐doped argon atmosphere on the chemical composition and temperature of a thermal nontransferring argon plasma is investigated using optical emission spectroscopy. As a result of the high amount of free electrons resulting from the stepwise ionization and dissociation of the silane molecule, even a silane addition of 0.01 vol ...
Lena Kreie, David Kramer, Thomas Scheithauer, Hans Jürgen Maier, Thomas Hassel   +4 more
wiley   +1 more source

Influence of an Oxygen‐Free Atmosphere on Diamond‐Single‐Grain Scratching of Ti–6Al–4V

Advanced Engineering Materials, EarlyView.
Single‐grain scratching of Ti–6Al–4V is investigated under controlled, oxygen‐free, and ambient atmospheres using a novel experimental setup with in situ high‐speed imaging. The approach enables direct observation of chip formation and adhesion under suppressed oxidation.
Berend Denkena, Benjamin Bergmann, Michael Zenger   +2 more
wiley   +1 more source

Optimal Parameters for Joining Polymer and Aluminum with an Adhesive Layer Using Friction Stir Welding in Aerospace Industry [PDF]

علوم، فناوری و کاربردهای فضایی
Paying attention to the increasing use of metal-polymer composites in aerial and space structures and their economic efficiency, it is possible to achieve a more economical and high-quality connection by determining the appropriate parameters.
Mohammad Reza Mohammad Aliha, Saeed Ahmadpour Kasgari   +1 more
doaj   +1 more source

ANALISA PENGARUH AXIAL FORCE DAN ROTATIONAL SPEED PADA PROSES REPAIR AXLE SHAFT BEKAS MENGGUNAKAN FRICTION WELDING TERHADAP KETANGGUHAN AXLE SHAFT

Otopro, 2020
Increasing truck growth and a large number of failure phenomena on Axle Shaft components. Implied by an increase in shaft waste that fails, so an effort is needed to reduce it.
Irfan Malik Hartanto, Akhmad Hafizh Ainur Rasyid   +1 more
doaj   +1 more source