PRECIPITATION-HARDENING TYPE Al-Si BASED ALUMINUM ALLOY CASTING

Title:

PRECIPITATION-HARDENING TYPE Al-Si BASED ALUMINUM ALLOY CASTING

Document Type and Number:

Japanese Patent JP2009091619

Kind Code:

A

Abstract:

To provide a product comprising aluminum casting, in which thermal fatigue characteristic is improved as compared with the conventional casting.

A precipitation-hardening type Al-Si based aluminum alloy casting can be obtained. In crystal grains on a surface layer structure in the alloy casting, the ones having circularity of 0.6-0.8 occupy 70% of the whole grains.

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Inventors:

TODA HIROYUKI
OBA YOSHIO
YAMADA TORU

Application Number:

JP2007263213A

Publication Date:

April 30, 2009

Filing Date:

October 09, 2007

Export Citation:

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Assignee:

UNIV TOYOHASHI TECHNOLOGY
ASAHI TEC CORP

International Classes:

C22C21/02; B22D29/00; C22F1/043; C22F1/00

Attorney, Agent or Firm:

Ippei Watanabe
Koji Kikawa

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