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Enabling Technologies for Unified Life-Cycle Engineering of Structural Components (1991) / Chapter Skim
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5 MATERIALS
Pages 29-34

The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.


From page 29...
... Metal alloys with very refined microstructure produced by rapid solidification processing provide enhanced mechanical properties and corrosion resistance, and toughened ceramics are finding uses in high-temperature bearings. The synthesis of new polymers has led to the development of materials with improved mechanical properties and resistance to solvent degraclation.
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From page 30...
... Experience gained in the laboratory on research of either processing or properties of new materials is often not readily transferrable to materials processing engineers, equipment designers, and manufacturing staff, due to inadequate knowledge of the effects of part and process scale-up and the reduced process control capability of many manufacturing operations. Although "limit" criteria exist for various processing operations, it is not possible in all cases to predict materials properties after single processing sequences, much less those involving multiple operations.
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From page 31...
... This intelligent processing of materials will utilize a feedback system consisting of NDE sensors operating in the framework of a process model and in an expert system that drives the process controls; a valid process data base will be essential. This automation approach, which could be called intelligent processing of materials, will change
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From page 32...
... SIGNIFICANCE OF THE CHANGE The emphasis on maximizing performance will continue to foster the development of high-performance materials; however, the need to more completely characterize these materials to assure their suitability over the complete product life cycle will inhibit premature application of new materials. The list of currently available materials is sufficiently lengthy that, even in today's environment, it challenges the ability of the materials engineer to make the most effective material selection.
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From page 33...
... 1983. NMAB-405, Materials Properties Data Management Approaches to a Critical National Need, National Adademy Press.
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Key Terms

  • intelligent processing
  • nde techniques
  • materials processing
  • materials properties
  • material behavior

  • joining techniques
  • advanced composites
  • ulce environment
  • repair function
  • empirical data

  • utilizing microwaves
  • process control
  • advanced materials
  • mechanical properties
  • experience delays

  • service environment
  • processing engineers
  • physical analysis
  • properties tailored
  • dielectric materials

  • produces uncertainties
  • processing capabilities
  • object damage
  • enhanced mechanical
  • ultrasonic bonding

  • materials microstructure
  • rapidly expanding
  • automated techniques
  • possess resistance
  • laboratory scale


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