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Characterization and Durability of Mold-In-Color Engineering Plastics

Mahindra & Mahindra, Ltd.-Sandeep Kumar Shukla
  • Technical Paper
  • 2019-28-2542
Published 2019-11-21 by SAE International in United States
Plastics are prone to photo oxidative and thermal oxidative degradation under usage conditions due to their chemical nature. From sustainability and cost standpoint, there is an increasing focus on Mold-In-Color (MIC) plastic materials. Simultaneously customer’s expectations on the perceived quality of these MIC parts has been increasing with attractive color and glossy appearance.A study was conducted to analyze the product quality and durability aspects over a prolonged exposure to accelerated weathering condition. Material selected for this study were injection molded specimens of ABS and PC-ABS used in automotive passenger vehicles.Comparative analysis was conducted before and after weathering exposure at defined intervals by using Fourier Transform infra-red spectrometer (FTIR), differential scanning colorimetry (DSC), universal testing machine (UTM), Izod impact tester and microscope to understand the impact on their chemical and mechanical properties.
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Analysis of Metal Pick-Up Formation Process within Automotive Brake Pad

SAE International Journal of Materials and Manufacturing

Ask Technica Corporation, Japan-Hirokazu Noda
University of Yamanashi, Japan-Takahiro Takei
  • Journal Article
  • 05-13-01-0003
Published 2019-11-19 by SAE International in United States
Metal Pick-Up (MPU) is a problematic phenomenon in automotive disc brakes. MPU generally forms as some metal lumps on the surface of the brake pad. If brake pads have MPU, during braking they would cause grooving of the disc rotor, generating brake noise and deteriorating the performance of the brake. The previous literature has so far reported that the source of the MPU is an Fe component from a disc rotor or brake pads. However, only a few of the generation mechanisms of MPU have been proven. We investigate MPU to completely elucidate the mechanism of MPU generation by using different analyses than the previous literature. First, to find out the source of MPU generation, we focus on the chemical reaction of a certain component with wear debris during braking, and some of the verification experiments are conducted under the conditions of simulated friction interface. Second, to clarify the change in the form of the MPU growth process, the crystal structure of MPU is analyzed in detail by using the world’s largest synchrotron radiation facility…
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Aluminum Alloy, Extrusion 3.7Cu - 1.15Li - 0.5Zn - 0.45Ag - 0.4Mg - 0.3Mn - 0.1Zr (2055-T84) Solution Heat Treated, Stress Relieved by Stretching 2% to 5% and Aged

AMS D Nonferrous Alloys Committee
  • Aerospace Material Specification
  • AMS4257
  • Current
Published 2019-11-12 by SAE International in United States
This specification covers an aluminum alloy in the form of extruded bars, rods, and profiles.
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Nickel Alloy, Corrosion and Heat-Resistant, Bars, Forgings, and Rings 60Ni - 22Cr - 2.0Mo - 14W - 0.35Al - 0.03La Solution Heat Treated

AMS F Corrosion Heat Resistant Alloys Committee
  • Aerospace Material Specification
  • AMS5891C
  • Current
Published 2019-11-05 by SAE International in United States
This specification covers a corrosion and heat-resistant nickel alloy in the form of bars, forgings, flash welded rings, and stock for forging, flash welded rings, or heading.
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Steel, Corrosion-Resistant, Investment Castings 15Cr - 4.6Ni - 0.22Cb - 2.8Cu Solution Heat Treated, Precipitation Hardenable

AMS F Corrosion Heat Resistant Alloys Committee
  • Aerospace Material Specification
  • AMS5357E
  • Current
Published 2019-11-05 by SAE International in United States
This specification covers a corrosion-resistant steel in the form of investment castings.
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Trace Element Control Nickel Alloy Castings

AMS F Corrosion Heat Resistant Alloys Committee
  • Aerospace Material Specification
  • AMS2280D
  • Current
Published 2019-11-05 by SAE International in United States
This specification establishes testing methods and maximum permissible limits for trace elements in nickel alloy castings.
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Steel, Corrosion-Resistant, Investment Castings 16Cr - 4.1Ni - 0.28Cb (Nb) - 3.2Cu Homogenization, Solution, and Precipitation Heat Treated (H1000) 150 ksi (1034 MPa) Tensile Strength (17-4)

AMS F Corrosion Heat Resistant Alloys Committee
  • Aerospace Material Specification
  • AMS5343F
  • Current
Published 2019-11-05 by SAE International in United States
This specification covers a corrosion-resistant steel in the form of investment castings.
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Steel, Corrosion-Resistant, Investment Castings 15Cr - 4.6Ni - 0.22Cb (Nb) - 2.8Cu Solution and Precipitation Heat Treated (H925) 180 ksi (1241 MPa) Tensile Strength (15-5)

AMS F Corrosion Heat Resistant Alloys Committee
  • Aerospace Material Specification
  • AMS5346D
  • Current
Published 2019-11-05 by SAE International in United States
This specification covers a corrosion-resistant steel in the form of investment castings.
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Steel, Corrosion and Heat-Resistant, Bars, Wire, and Forgings 18Cr - 10.5Ni - 0.60Cb Free-Machining, Solution Heat Treated

AMS F Corrosion Heat Resistant Alloys Committee
  • Aerospace Material Specification
  • AMS5642M
  • Current
Published 2019-11-05 by SAE International in United States
This specification covers two types of free-machining, corrosion and heat-resistant steel in the form of bars, wire, forgings, and forging stock.
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Steel, Corrosion-Resistant, Investment Castings 16Cr - 4.1Ni - 0.28Cb (Nb) - 3.2Cu Homogenization, Solution, and Precipitation Heat Treated (H1100) 130 ksi (896 MPa) Tensile Strength (17-4)

AMS F Corrosion Heat Resistant Alloys Committee
  • Aerospace Material Specification
  • AMS5342F
  • Current
Published 2019-11-05 by SAE International in United States
This specification covers a corrosion-resistant steel in the form of investment castings.
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