Title:
鋳造用結晶粒微細化剤およびその製造方法
Document Type and Number:
Japanese Patent JP5850372
Kind Code:
B2
Abstract:
[Object] To provide a grain refiner for casting; and a method for producing the same. The grain refiner contains heterogeneous nucleator particles having a smaller degree of mismatching ´ with respect to pure aluminum or an aluminum alloy than those of customary grain refiners. [Solution] The grain refiner is produced by rapid and low-temperature sintering through spark plasma sintering. The grain refiner contains heterogeneous nucleator particles that have a small degree of mismatching and originally fail to exist in equilibrium with aluminum. Typically spark plasma sintering gives a grain refiner for casting which includes an aluminum matrix; and particles of an L1 2 structure Al 5 CuTi 2 intermetallic compound dispersed in the matrix. The grain refiner, when added to a molten metal, gives a pure-aluminum or aluminum-alloy cast material having a refined and uniformized microstructure.
Inventors:
Yoshimi Watanabe
Nao Sato
Matsuoka Yudai
Nao Sato
Matsuoka Yudai
Application Number:
JP2012554746A
Publication Date:
February 03, 2016
Filing Date:
January 19, 2012
Export Citation:
Assignee:
National Institute of Technology Nagoya Institute of Technology
International Classes:
B22D27/20; B22F3/105; C22C1/04; C22C5/02; C22C5/04; C22C5/06; C22C9/00; C22C9/01; C22C9/04; C22C9/05; C22C9/06; C22C14/00; C22C16/00; C22C18/00; C22C18/02; C22C18/04; C22C19/00; C22C21/00; C22C22/00; C22C27/06; C22C28/00; C22C38/00
Domestic Patent References:
| JP2005329459A | 2005-12-02 | |||
| JPH10204555A | 1998-08-04 |
Other References:
JPN6012017421; ＪＯＨＮＳＯＮ，Ｍ．， ＢＡＥＣＫＥＲＵＤ，Ｌ．: 'Ｎｕｃｌｅａｎｔｓ ｉｎ Ｇｒａｉｎ Ｒｅｆｉｎｅｄ Ａｌｕｍｉｎｉｕｍ ａｆｔｅｒ Ａｄｄｉｔｉｏｎ ｏｆ Ｔｉ- ａｎｄ Ｂ-ｃｏｎｔａｉｎｉｎｇ Ｍａｓｔｅｒ Ａｌｌｏｙｓ' Ｚｅｉｔｓｃｈｒｉｆｔ ｆｕｅｒ Ｍｅｔａｌｌｋｕｎｄｅ ｖｏｌ．８３，Ｎｏ．１１, 1992, ｐ７７４-７８０, Ｃａｒｌ Ｈａｎｓｅｒ Ｖｅｒｌａｇ
Attorney, Agent or Firm:
Patent Business Corporation Yuai Patent Office