Paper Title:
Effect of Cooling Rate on Structural and Chemical Microheterogeneity of IN 738LC Nickel Based Superalloy
  Abstract

The paper deals with the effect of cooling rate on solidification behavior of IN 738LC nickel based superalloy and on resulting structural and chemical microheterogeneity of this alloy. Samples taken from as-received state were heated with controlled ramp rates (1, 5, 10 and 20 °C min-1). Immediately after melting they were cooled with the same controlled ramp rate with the help of the laboratory experimental system SETARAM SETSYS 18TM TG/DTA/TMA. Then the microanalysis of minority phases was conducted with use of X-ray spectroscopy and microstructure of the individual samples was documented by scanning electron microscopy. Chemical microheterogeneity was determined on the basis of measured concentration data of selected elements (Al, Ti, Cr, Co, Ni, Nb, Mo, Ta and W) in representative areas of the individual samples structure.

  Info
Periodical
Solid State Phenomena (Volume 138)
Edited by
J. Čermák and I. Stloukal
Pages
201-208
DOI
10.4028/www.scientific.net/SSP.138.201
Citation
J. Dobrovská, S. Dočekalová, V. Dobrovská, K. Stránský, "Effect of Cooling Rate on Structural and Chemical Microheterogeneity of IN 738LC Nickel Based Superalloy ", Solid State Phenomena, Vol. 138, pp. 201-208, 2008
Online since
March 2008
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Torbjörn Carlberg
Abstract:The formation of polyhedral silicon crystals in aluminium 7-9% silicon alloys has been studied both in industrial ingots and in simulation...
307
Authors: Yu Hai Qu, Kai Jin Yang, Yan Tian Zhou, Yong Mao, Wei Zhang, Si Yong Xu
Symposium S: Materials for Mechanical Engineering and Processing Technology
Abstract:The sub-rapidly solidified Au-20Sn eutectic alloys were prepared by four different solidification pathways, such as, graphite mold...
325
Authors: Zhanna G. Kovalevskaya, Evgeny A. Kovalevskiy, Margarita A. Khimich
Chapter 3: Materials and Technologies in Powder Metallurgy and Additive Manufacturing
Abstract:Influence of Fe-Si-Al-C alloy cooling rate on its phase composition, structure and microhardness is shown based on metallographic...
205