# Mechanical Properties of Powder Metallurgy Extruded Al Based Composites Using Sheath

https://mdr.nims.go.jp/datasets/37808a88-cb06-4944-b910-a743954d9a5e

## File

- [JIM,66,2025,p998.pdf](https://mdr.nims.go.jp/filesets/9541866d-5944-404a-9153-528bdec94c21/download) ([Detail](https://mdr.nims.go.jp/filesets/9541866d-5944-404a-9153-528bdec94c21.md))

## Id

37808a88-cb06-4944-b910-a743954d9a5e

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-12-03T07:55:49.765526Z

## Updated at

2025-12-05T03:30:07.437251Z

## Published at

2025-12-05T03:23:28.526950Z

## Doi



## First published url

https://doi.org/10.2320/matertrans.mt-m2025050

## Date published

2025-08-01

## Recorded date published

2025

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Mechanical Properties of Powder Metallurgy Extruded Al Based Composites Using
    Sheath
  title_type: original
  lang: en

## Description

- description: The effects of extrusion and dispersed particles (SiC or SiO2) on the
    mechanical properties are examined on aluminum (Al) based composites prepared
    from powder metallurgy.  Extrusion is effective for i) grain refinement of the
    a-Al matrix and ii) producing high quality bulk specimens on a large scale.  This
    is because of a high applied stress during hot-extrusion contributes to the degradation
    of oxide films covering the powder particles, leading to the creation of new real
    surfaces.  Microstructural observations show that powder-based extruded Al and
    its composites have fine-grained structures, i.e., an average grain size of less
    than 5 um in the a-Al matrix.  Accordingly, associated to these microstructures,
    they show higher strength (~30 MPa) and hardness (~10 Hv) than those of cast Al
    and its composite.  In addition to beneficial mechanical properties, the extrusion
    process does not give a negative impression as for wear property, i.e., the wear
    rate.  Plasticity-controlled void growth mechanism is focused to consider the
    impact of extrusion on bonding quality.  The time required to shrink voids is
    estimated, and this value is consistent with the actual processing duration.
  description_type: abstract
  lang: und

## Creator

- name: Mariya Kunichika
  role: author
- name: Morimasa Nakamura
  role: author
- name: Takashi Matsuoka
  role: author
- name: Hidetoshi Somekawa
  role: author
  orcid: https://orcid.org/0000-0001-5007-5834
  organization: National Institute for Materials Science

## Contact agent



## Publisher

organization: Japan Institute of Metals

## Managing organization



## Keyword

- subject: Aluminum
  schema: not_defined
- subject: Extrusion
  schema: not_defined
- subject: Mechanical property
  schema: not_defined
- subject: Powder Metallurgy
  schema: not_defined

## Rights

- identifier: http://rightsstatements.org/vocab/InC/1.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: MATERIALS TRANSACTIONS
  issn: '13475320'
  volume: '66'
  issue: '8'
  start_page: 998
  end_page: 1005
  article_number: MT-M2025050

## Conference



## Related item



## Funding



## Instrument



## Instrument operator



## Instrument managing organization



## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



## Structural feature for specimen



## Specific property for specimen



## Process for specimen treatment



## Computational method



## Energy level/transition state



## Software



## Custom property



## Fileset

- id: 9541866d-5944-404a-9153-528bdec94c21
  filename: JIM,66,2025,p998.pdf
  content_type: application/pdf
  size: 2598977
  md5: 23d555d927586f08b426531f6f3c98a4

## Thumbnail

fileset_id: 9541866d-5944-404a-9153-528bdec94c21
filename: JIM,66,2025,p998.pdf