With the drive to build higher performance automobile engines, there has been a steady demand to further improve the mechanical behavior of the cast aluminum alloy 354 through improvements in processing. The present study explores the possibility of improving the tensile properties, quality indices Q &amp; QC and fatigue life of the alloy over those obtained by standard T61 treatment by adopting different modified aging treatments. These include i) lowering the artificial aging temperature ii) interrupted aging cycles similar to T6I4 referred to in the published literature and iii) artificial aging in two steps instead of in single step. Based on the results, a few modified aging treatments could be identified which lead to a comparable combination of tensile properties, but with improved fatigue life and a shade higher quality level. © 2014 The Minerals, Metals &amp; Materials Society.

Nageswara Rao M

Department of Manufacturing Engineering

School of Mechanical Engineering

Vellore Campus

Dinesh Babu G

Vellore Institute of Technology (VIT) is a private university located in&nbsp;Tamil Nadu, India. Founded in 1984, as Vellore Engineering College, the institution offers 20 undergraduate, 34 postgraduate, four integrated and four research programs. It has campuses in Vellore, Amravati, Bhopal and Chennai.

VIT is one of the top ranked private universities in India according to NIRF, THE and QS Rankings.&nbsp;Govt. of India has recognized&nbsp;VIT, Vellore as an&nbsp;Institution of Eminence. This has allowed VIT to take independent quality initiatives and move up in world ranking.

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VIT University

Light Metals 2014

The cast Al–Si–Cu–Mg alloy 354 is used for the production of critical components for the automotive sector, such as the compressor wheel for the turbocharger. With steady improvements taking place in the design of automotive engines, increasing demands are being placed on the performance of the compressor wheel castings. Making advancements in technology of production of the alloy castings has hence been the subject of many researches. This paper examines the effect of fluidized bed (FB) processing on the behavior of the castings under cyclic loading conditions. FB treatment was found to result in fatigue life close to that obtained after conventional heat treatment, but with major savings in the total heat treatment time. © 2019, The Indian Institute of Metals - IIM.

Transactions of the Indian Institute of Metals

Effect of Fluidized Bed Processing on Performance of 354 Aluminum Compressor Wheels Produced by Counter-Gravity Casting

Cast aluminium alloy 354 has found widespread application in the automotive industry for its excellent mechanical properties and good castability. The stringent emission norms and demands for improved fuel economy have pushed automobile technology to new frontiers. This has led to efforts to reduce weight while maintaining higher vehicle performance. Cast aluminium alloy 354 is a material that performs with reasonable effectiveness in the high stress automobile environment. The present study looks at the use of strain energy density W and the quality index Qo to determine the effect of process parameters like aging temperature and modification on the quality of the alloy 354 and also to monitor the effect of interrupted heat treatments T6I4 and T6I6 on the quality of the material. The strain energy density W calculated for the interrupted heat treatments on alloy 354 show a broad inverse relation with yield strength Rp. An improvement in the yield strength and the strain energy density of the alloy is observed when the alloy is subjected to modification. At artificial aging temperatures lower than the artificial aging temperature adopted in standard aging treatment an improvement in the Qo and W quality of the alloy 354 have been observed.

Advanced Materials Research

Use of Strain Energy Density W and Qo as Quality Indices for Rating the Quality of Cast Aluminium Alloy354 as a Function of Processing Parameters

GSTF Journal of Engineering Technology

Effect of various non conventional aging treatments on the mechanical properties and quality indices of cast and heat treated components of aluminum alloy 354

Heat Treating of Nonferrous Alloys

Heat Treatment Practices of Age-Hardenable Aluminum Alloys[1]

Metallurgical and Materials Transactions A

Influence of Aging Parameters on the Tensile Properties and Quality Index of Al-9 Pct Si-1.8 Pct Cu-0.5 Pct Mg 354-Type Casting Alloys

Journal of Materials Science

Precipitation-hardening in cast AL–Si–Cu–Mg alloys

Effect of Modified Aging Treatments on the Tensile Properties, Quality Indices and Fatigue Life of Cast Components of Aluminum Alloy 354

Journal	Data powered by TypesetLight Metals 2014
Publisher	Data powered by TypesetJohn Wiley & Sons, Inc.
Open Access	0