A Study on Fusion Repair Process for a Precipitation Hardened IN738 Ni-Based Superalloy-Reference-Cited by-同舟云学术

A Study on Fusion Repair Process for a Precipitation Hardened IN738 Ni-Based Superalloy

Published:2000-05-15 Issue:3 Volume:122 Page:457-461
ISSN:0742-4795
Container-title:Journal of Engineering for Gas Turbines and Power
language:en
Short-container-title:

Author:

Kim Dae-Young¹,Hwang Jong-Hyun¹,Kim Kwang-Soo¹,Youn Joong-Geun¹

Affiliation:

1. Hyundai Industrial Research Inst., Hyundai Heavy Industries Co., Ltd., 1 Cheonha-dong Dong-ku Ulsan, Korea 682-792

Abstract

Several fusion repair processes such as laser cladding, laser welding and gas tungsten arc welding have been taken into consideration for repairing IN738 precipitation hardened Ni-based superalloy material. Effect of heat input on weld cracking susceptibility has been studied to obtain optimum condition for crack-free welds. Variations in cracking susceptibility as a function of welding heat input is discussed with reference to metallurgical characteristics of the welds. [S0742-4795(00)02003-2]

Publisher

ASME International

Subject

Mechanical Engineering,Energy Engineering and Power Technology,Aerospace Engineering,Fuel Technology,Nuclear Energy and Engineering

Link

http://asmedigitalcollection.asme.org/gasturbinespower/article-pdf/122/3/457/5748933/457_1.pdf

Reference4 articles.

1. Dodgson, J. S., 1982, “Repair Techniques for Hot Gas Path Components in Industrial Gas Turbine,” ASME Paper 82-GT-104.

2. Liburdi, J., and Lowden, P., 1985, “Repair Techniques for Gas Turbine Components,” AGARD Conf. Proc., No. 398, Sept., 22-1.

3. Jahnke, B. , 1982, “High-Temperature Electron Beam Welding of the Nickel-Base Superalloy IN-738LC,” Weld. J. (London), 61, No. 11, p. 343343.

4. Haafkens, M. H., and Matthey, J. H. G., 1982, “A New Approach to the Weldability of Nickel-Base As-Cast and Power Metallurgy Superalloys,” Weld. J. (London), 61, No. 11, p. 2525.

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