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Dynamics of precipitation and transformation of carbides in a Ni-base superalloy

Abstract

The quantitative analytical method connecting electrolytic extraction with X-ray diffraction analysis was developed to determine the carbides and TCP in an Ni-base superalloy. The alteration of decomposition of MC and precipitation of M23C6 and M6C with hot-exposure time under 850-1000 C is shown as hyperbolic pattern. The elemental constitution of M23C6 changes continuously under hot exposure; (Cr0.67Mo0.13Ni0.13Co0.07)23C6 precipitates from the beginning, and (Cr0.88Mo0.07Ni0.03Co0.02)23C6 precipitates at the end with the contents in increasing Cr and decreasing Mo, Ni and Co. The higher the hot exposure temperature, the faster the final constitution of M23C6 may be achieved.
Authors:
Huang, Qianyao; Shi, Yanyu [1] 
  1. Central Iron and Steel Research Institute, Beijing (China)
Publication Date:
Dec 01, 1988
Product Type:
Journal Article
Reference Number:
EDB-89-159946
Resource Relation:
Journal Name: Chin Shu Hsueh Pao; (China); Journal Volume: 24
Subject:
36 MATERIALS SCIENCE; CHROMIUM ALLOYS; PRECIPITATION; COBALT ALLOYS; MOLYBDENUM ALLOYS; NICKEL BASE ALLOYS; CARBIDES; ELECTROLYSIS; EXTRACTION; HEAT RESISTING ALLOYS; PHASE TRANSFORMATIONS; PRECIPITATION HARDENING; X-RAY DIFFRACTION; ALLOYS; CARBON COMPOUNDS; COHERENT SCATTERING; DIFFRACTION; HARDENING; HEAT RESISTANT MATERIALS; LYSIS; MATERIALS; NICKEL ALLOYS; SCATTERING; SEPARATION PROCESSES; 360102* - Metals & Alloys- Structure & Phase Studies
OSTI ID:
5424935
Country of Origin:
China
Language:
Chinese
Other Identifying Numbers:
Journal ID: ISSN 0412-1961; CODEN: CHSPA
Submitting Site:
IAA
Size:
Pages: A399-A403
Announcement Date:
Apr 01, 1989

Citation Formats

Huang, Qianyao, and Shi, Yanyu. Dynamics of precipitation and transformation of carbides in a Ni-base superalloy. China: N. p., 1988. Web.
Huang, Qianyao, & Shi, Yanyu. Dynamics of precipitation and transformation of carbides in a Ni-base superalloy. China.
Huang, Qianyao, and Shi, Yanyu. 1988. "Dynamics of precipitation and transformation of carbides in a Ni-base superalloy." China.
@misc{etde_5424935,
title = {Dynamics of precipitation and transformation of carbides in a Ni-base superalloy}
author = {Huang, Qianyao, and Shi, Yanyu}
abstractNote = {The quantitative analytical method connecting electrolytic extraction with X-ray diffraction analysis was developed to determine the carbides and TCP in an Ni-base superalloy. The alteration of decomposition of MC and precipitation of M23C6 and M6C with hot-exposure time under 850-1000 C is shown as hyperbolic pattern. The elemental constitution of M23C6 changes continuously under hot exposure; (Cr0.67Mo0.13Ni0.13Co0.07)23C6 precipitates from the beginning, and (Cr0.88Mo0.07Ni0.03Co0.02)23C6 precipitates at the end with the contents in increasing Cr and decreasing Mo, Ni and Co. The higher the hot exposure temperature, the faster the final constitution of M23C6 may be achieved.}
journal = []
volume = {24}
journal type = {AC}
place = {China}
year = {1988}
month = {Dec}
}