Title:
TIAL-BASED ALLOY MEMBER EXCELLENT IN DUCTILITY AT ORDINARY TEMPERATURE AND ITS PRODUCTION
Document Type and Number:
Japanese Patent JPH06192776
Kind Code:
A
Abstract:
PURPOSE: To obtain a TiAl alloy member excellent in ductility at ordinary temp. by forming a Ti or Ti alloy surface layer on the surface of a heat resistant lightweight material made of a TiAl-based alloy having a specified compsn.
CONSTITUTION: A layer of pure Ti or a (α/β) type Ti alloy (Ti-6Al-4V) is formed by plasma spraying or other method on the surface of a member made of a TiAl intermetallic compd. type alloy consisting of 44-52 atomic % Al and the balance Ti or further contg. ≤6 atomic %, in total, of one or more among Mo, V, Cr, Mn, Fe, Ta, W, Hf, Zr, B, C and Si. Inferior ductility at ordinary temp. as a defect of the TiAl-based alloy is remarkably improved and the objective heat resistant lightweight member is obtd.
Inventors:
MAEDA HISASHI
OKADA MINORU
OKADA MINORU
Application Number:
JP34912692A
Publication Date:
July 12, 1994
Filing Date:
December 28, 1992
Export Citation:
Assignee:
SUMITOMO METAL IND
International Classes:
C22C1/00; C22C14/00; C22C21/00; C23C4/08; (IPC1-7): C22C14/00; C22C1/00; C22C21/00; C23C4/08
Attorney, Agent or Firm:
Hirose Shoichi