Published 1989 | Version v1
Book Metadata-only

Effects of magnesium on niobium segregation and impact toughness in cast alloy 718

Creators

  • 1. University of Science and Technology of China, Beijing, BJ (China)
  • 2. Purdue Univ., Lafayette, IN (USA)

Description

A program has been conducted on the effects of Mg in cast alloy 718. The results show that small amounts of Mg improves impact toughness and decreases Nb segregation by decreasing secondary dendrite arm spacing which results in less and smaller interdendritic Laves and MC eutectics. Small amounts of Mg produce a more spheroidal as well as a more dispersive MC phase. Impact toughness was found to be related to the refinement of interdendritic segregation of Nb which affects the size, quantity and morphology of Laves and MC phases

Additional details

Publishing Information

Publisher
The Metallurgical Society Inc.
Imprint Place
Warrendale, PA (USA)
ISBN
0-87339-097-0
Imprint Title
Superalloy 718
Imprint Pagination
696 p.
Journal Page Range
p. 545-552.

Conference

Title
International symposium on the metallurgy and applications of superalloy 718.
Dates
12-14 Jun 1989.
Place
Pittsburgh, PA (USA).

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
21074305
Subject category
S36: MATERIALS SCIENCE; S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ALLOY-NI53CR19FE19NB5MO3; IMPACT STRENGTH; INTERMETALLIC COMPOUNDS; LAVES PHASES; MAGNESIUM ADDITIONS; METALLURGY; MORPHOLOGICAL CHANGES; NIOBIUM; PHASE STUDIES
Descriptors DEC
ALLOYS; ALUMINIUM ADDITIONS; CHROMIUM ALLOYS; CORROSION RESISTANT ALLOYS; ELEMENTS; HEAT RESISTING ALLOYS; INCONEL ALLOYS; IRON ALLOYS; MECHANICAL PROPERTIES; METALS; MOLYBDENUM ALLOYS; NICKEL ALLOYS; NICKEL BASE ALLOYS; NIOBIUM ALLOYS; TITANIUM ADDITIONS; TRANSITION ELEMENTS

Optional Information

Secondary number(s)
CONF-890646--.