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Nickel Alloy, Corrosion and Heat-Resistant, Seamless Tubing, 52.5Ni - 19Cr - 3.0Mo - 5.1Cb (Nb) 0.90Ti - 0.50Al - 18Fe, Consumable Electrode Remelted or Vacuum Induction Melted, 1775 °F (968 °C) Solution Heat Treated

AMS F Corrosion Heat Resistant Alloys Committee
  • Aerospace Material Specification
  • AMS5589G
  • Current
Published 2019-12-13 by SAE International in United States

This specification covers a corrosion and heat-resistant nickel alloy in the form of seamless tubing 0.125 inch (3.18 mm) and over in nominal OD with nominal wall thickness 0.015 inch (0.38 mm) and over (see 8.6).

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Oxidation of Soybean Biodiesel Fuel in Diesel Engine Oils

SAE International Journal of Fuels and Lubricants

Ford Motor Company, USA-James C. Ball, Dairene Uy, Timothy J. Wallington
Michigan State University, USA-Jacob A. Duckworth
  • Journal Article
  • 04-12-03-0015
Published 2019-12-05 by SAE International in United States
During diesel engine operation, some fuel is entrained in engine oil, particularly as a consequence of strategies to regenerate NOx traps or particle filters. This “fuel dilution” of oil can adversely affect engine oil properties and performance. Compared to diesel fuel, biodiesel is more prone to fuel dilution and more susceptible to oxidation. Oxidation stability experiments were conducted at 160°C using a modified Rapid Small-Scale Oxidation Test (RSSOT) and a Rancimat instrument with 0, 5, 10, and 20 wt% biodiesel in four fully formulated engine oils, two partially formulated engine oils, and two base oils. These experiments showed decreasing oxidation stability with increasing biodiesel content. An exception was noted with the least stable oils (two base oils and one engine oil) in which 5 wt% biodiesel improved the oxidation stability relative to oil without biodiesel. Experiments with biodiesel distillation fractions identified this stability enhancement within the least volatile biodiesel fraction, consistent with natural antioxidants in the biodiesel. Omission of two engine oil additives, antioxidants and zinc dialkyldithiophosphates (ZDDP), led to an unexpected increase in oxidation…
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Nickel Alloy, Corrosion and Heat-Resistant, Bars and Forgings, 57Ni - 20Cr - 10Co - 8.5Mo - 2.1Ti - 1.5Al - 0.005B, Vacuum Induction and Consumable Electrode Melted, Solution Heat Treated, Precipitation Heat Treatable

AMS F Corrosion Heat Resistant Alloys Committee
  • Aerospace Material Specification
  • AMS5915A
  • Current
Published 2019-12-02 by SAE International in United States

This specification covers a corrosion and heat-resistant nickel alloy in the form of bars, forgings, and stock for forging.

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Sensing Applied Load and Damage Effects in Composites with Nondestructive Techniques

Aerospace & Defense Technology: December 2019

  • Magazine Article
  • 19AERP12_08
Published 2019-12-01 by SAE International in United States

Comparing and correlating piezoelectrically induced guided waves, acoustic emission, thermography, and X-ray imaging to determine the effects of applied load on a composite structure.

Composite materials are desirable for aeronautical and aerospace applications for many reasons including their high strength-to-weight ratios, fatigue and corrosion resistance, design adaptability, and performance capabilities in harsh environments. Because of these qualities, composites are useful in many applications such as in armor, helmets, and helicopters, and as structural components.

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Cobalt Alloy, Corrosion and Heat-Resistant, Round Wire 20Cr - 15Ni - 40Co - 7.0Mo - 16Fe Vacuum Induction Plus Consumable Electrode Melted Solution Heat Treated, Cold Drawn, and Aged

AMS F Corrosion Heat Resistant Alloys Committee
  • Aerospace Material Specification
  • AMS5834E
  • Current
Published 2019-11-25 by SAE International in United States

This specification covers a corrosion and heat-resistant cobalt alloy in the form of round wire 0.001 to 0.140 inch (0.025 to 3.56 mm) inclusive in nominal diameter supplied in straight lengths or coils (see 8.6).

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Cobalt Alloy, Corrosion and Heat-Resistant, Round Wire 20Cr - 15Ni - 40Co - 7.0Mo - 16Fe Solution Heat Treated and Cold Drawn

AMS F Corrosion Heat Resistant Alloys Committee
  • Aerospace Material Specification
  • AMS5833E
  • Current
Published 2019-11-25 by SAE International in United States

This specification covers a corrosion and heat-resistant cobalt alloy in the form of round wire 0.001 to 0.140 inch (0.025 to 3.56 mm) inclusive in nominal diameter supplied in straight lengths or coils (see 8.5).

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Vehicle Interior cleanliness tracker

Aptiv Components India Pvt Ltd.-Vijayalakshmi kr, Anitha Loganathan
  • Technical Paper
  • 2019-28-2466
Published 2019-11-21 by SAE International in United States
The future of mobility is being driven towards fully autonomous driving. As a result, people spend majority of the time in vehicles for chores other than driving. The focus of automotive makers shifts towards providing best-in-class passenger comfort. One of the least focused area in passenger comfort is vehicle interior cleanliness which requires periodic human intervention. An intelligent vehicle can outsmart a human by self-caring to maintain the cleanliness elements on floor, seat and roof. This paper addresses subjects like wetness, dirt and stains in the vehicle interior utilizing the capability of Interior sensing platform. An internally mounted camera in the vehicle can capture images of the interior and apply image processing techniques to identify the subjects mentioned above. The wetness on the floor mats can lead to moldy odor, corrosion, failure of the electronic components in the car. Over a period, the vehicle upholstery or seats absorb the dirt and stains and lead to foul smell. HVAC can be used for drying the interior as appropriately detected by the system. A modern system to…
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Photo oxidation analysis method for automotive coating weathering performance evaluation

Mahindra Engineering-Rahul Lalwani
Mahindra Research Valley-Divya Pande, B Jayanthan, Vinay Kumar
  • Technical Paper
  • 2019-28-2555
Published 2019-11-21 by SAE International in United States
RESEARCH OBJECTIVE Accelerated artificial weathering performance has been always observed as critical and most important factor for durability prediction of colour and resin for a coating system. Photo oxidation of resin is the phenomenon behind coating’s ageing. Though accelerated weathering tests protocols are widely used in industry, they are very costly and still very time consuming. One automotive grade accelerated testing can go as long as 8 months duration. METHODOLOGY (maximum 150 words) Photo oxidation value (POV) is proportionate to the degradation of the resin material used in coating. During the accelerated weathering POV is measured for the coating at stipulated interval during initial phase and trend is plotted for deterioration verses weathering test duration. POV can be analysed with the help of FTIR analysis to observe bond absorption energy and bond separation energy in the resin system. This trend can be extrapolated to predict the weathering performance of coating. This method can save huge time in predicting the weathering performance and decision making. RESULTS (maximum 150 words) Photo oxidation degradation study was performed on…
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Simulation of Softening and Rupture in Multilayered Fuel Tank Material

General Motors Technical Center India-Vijaya Kumar R L, Biswajit Tripathy, Jayaraj Radhakrishnan
  • Technical Paper
  • 2019-28-2557
Published 2019-11-21 by SAE International in United States
Multi-layered, high-density polyethylene (HDPE) fuel tanks are increasingly being used in automobiles due to advantages such as shape flexibility, low weight and corrosion resistance. Though, HDPE fuel tanks are perceived to be safer as compared to metallic tanks, the material properties are influenced by service temperature. At higher temperatures (more than 80oC), plastic fuel tanks can soften, sag and eventually spill out the fuel, while the extreme cold (less than -20°C) can lead to potential cracking problems. Damage may also occur due to accidental drop while handling or due to an impact from a flying shrapnel. This can be catastrophic due to flammability of the fuel. The objective of this work is to characterize and develop a failure model for the plastic fuel tank material to simulate damage and enhance predictive capability of CAE for chassis and safety load cases. Different factors influencing the material properties such as service temperature, rate of deformation, state of stress etc. were considered to develop a characterization and modelling strategy for the HDPE fuel tank material. Samples cut-out from…
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Mitigation for Edge Corrosion Protection for Automotive Bodies

Mahindra & Mahindra, Ltd.-Jayanthan Balasubramanian, Rahul Lalwani, Vinay Kumar
  • Technical Paper
  • 2019-28-2561
Published 2019-11-21 by SAE International in United States
A major challenge to automotive industry is to protect the vehicle from corrosion in varying environments with respect to different service conditions. One of the main types of corrosion that affects aesthetic look is edge corrosion on sheet metal. Mostly edge is acting as starting point of corrosion due to unprotected metal exposed to environment. Special attention needs to be given to exposed edges to protect from rust formation.Samples were prepared as per design of experiments with respect to manufacturing process condition, material usage, and design. These samples were tested for corrosion test and painting process compatibility.In this study effect and limitation of burr and optimum solution with respect to corrosion was evaluated and results will be discussed.
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