Results 91 to 100 of about 6,764 (284)
Metals, 2018 The technological relevance of Al-Mg-Si alloys has been rapidly growing over the last decade. Of particular interest to current and future applications is the problematic negative effect of prior natural aging on subsequent artificial age hardening.
Alex Poznak, Violet Thole, Paul Sanders
doaj +1 more source
Optimizing hardenability of high chromium white cast iron [PDF]
, 2006 The formulas proposed by J. Dodd and J. L. Parks for calculating the hardenability of high-Cr white cast iron under continuous cooling condition was recommended. For broader application, some supplements were made to the formula.
LI Dan, SU Ying-long, ZHANG Xue-kun
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Advanced Engineering Materials, EarlyView.This study develops sustainable MgO–C refractories using recycled materials and eco‐friendly fructose–tannin binders. The enhanced performance of citric acid as a cross‐linker and functional additives on mechanical and thermomechanical properties was examined. Characterization included strength tests, immersion trials, and microstructural and inclusion
Dinesh K. Gunasekar +7 more
wiley +1 more source
Effect of C, Mn, Cr on Hardenability of Medium Carbon MnB Steel 228 Pitch Crawler Belt
Teshugang, 2012 As the quenched crawler belt manufactured by steel 40SiMn2, 35MnTiB and 30MnTiB ( C≥030% ) easily occurs micro-cracks that doesn' t meet the requirement of anti-fracture behavior, while the hardenability HRC J1.542. 5 〜 49. 0 and J13.017. 5 ~ 37.
邓通武
doaj
Advanced Engineering Materials, EarlyView.This study investigates how tramp elements from increased scrap usage influence phase transformations in low‐alloyed steel. Combining dilatometry and microscopy reveal that tramp elements delay transformations, reduce critical cooling rates and increase hardenability.
Lukas Hatzenbichler +5 more
wiley +1 more source
Hardenability Calculation of 20CrMnTiH Gear Steel and Control of Narrow Hardenability Band
Teshugang, 2019 The calculation method of the nonlinear equation is used to calculate the hardenability of 20CrMnTiH steel, and it can only be corrected by the actual production data, and can be used to calculate and predict the hardenability accurately.
王继臣, 赵千水, 李超群, 白刚
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Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading
Advanced Engineering Materials, EarlyView.The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
wiley +1 more source
Литьë и металлургия, 2009 Principles of a choice of modes of thermal processing of a detail with a coating are considered. As a way of reception hardfasing an alloy, it is offered diffusionaly alloying a carbonaceous wire. The way allows to adjust the content of alloying elements
V. G. Dashkevich
doaj +1 more source
Thrust chamber material technology program [PDF]
This report covers work performed at Pratt & Whitney on development of copper-based materials for long-life, reusable, regeneratively cooled rocket engine thrust chambers. The program approached the goal of enhanced cyclic life through the application of
Andrus, J. S., Bordeau, R. G.
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Using size distributions for determining growth mechanisms of grain boundary precipitates [PDF]
, 2010 In the past various single parameters such as the mean, mode or maximum of the precipitate size distribution have been used in experiments to determine growth mechanisms.
Northover, S. M.
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