Published January 1982 | Version v1
Journal article Metadata-only

Creep-rupture behaviour of mechanically alloyed Ni-base superalloy (MA6000E)

Creators

  • 1. Korea Advanced Inst. of Science and Technology, Seoul (Republic of Korea)
  • 2. International Nickel Co., Inc., New York (USA)

Description

An advanced Ni-base superalloy, MA6000E, combining both gamma prime and oxide dispersion strengthening has been developed by using mechanical alloying process at INCO. The nominal composition of the alloy is Ni-15Cr-2Mo-4W-4.5Al-2.5Ti-2Ta-0.15Zr-0.05C-0.01B-1.1Y2O3. The 100 hours rupture strength at 10930C of the alloy (165 MPa) is about three times higher than that of the best conventional superalloy. Creep stress exponent at 10930C is about 40, and the apparent creep activation energy is about 160 Kcal/mole at intermediate temperature. Stress-rupture properties are not degraded significantly after thermal cycling. (author)

Additional details

Publishing Information

Journal Title
J. Korean Inst. Met.
Journal Volume
20
Journal Issue
1
Series
J. Korean Inst. Met.
Journal Page Range
32-39

INIS

Country of Publication
Korea, Republic of
Country of Input or Organization
Korea, Republic of
INIS RN
13683405
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
ACTIVATION ENERGY; CREEP; DISPERSIONS; NICKEL BASE ALLOYS; RUPTURES; THERMAL CYCLING; VERY HIGH TEMPERATURE
Descriptors DEC
ALLOYS; ENERGY; FAILURES; MECHANICAL PROPERTIES; NICKEL ALLOYS; TRANSITION ELEMENT ALLOYS