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Development of a Ni-Base Heat Resistant Alloy (TOMILLOY) for Gas Turbine Combustor.

PB84170265

Publication Date	1984
Personal Author	Tsuji, I.; Ito, H.; Tsukagoshi, K.; Takeiri, T.; Kurauchi, N.
Page Count	13
Abstract	A new solid solution strengthened Ni-base heat resistant alloy, named TOMILLOY, has been developed for gas turbine combustors. The development of this alloy was carried out in two stages. In the first stage, ten kinds of alloys containing 22% Cr-12% Co-9% Mo-0.3% Al-0.8% Ti-0.005% B-Ni base as the basic composition but varied in the percentages of Co, W, Mo and Cr, were manufactured in the form of plates. The alloy plates were examined with respect to formability, high temperature strength, weldability and oxidation resistance and as the result 22% Cr-8% Co-9% Mo-3% W-0.3% Al-0.8% Ti-0.005% B-Ni base alloy was found to be the most suitable material. In the second stage, two tons of ingot having this chemical composition were melted and hot rolled to 4.8 mm-thick plates. Then, transition pieces were made using the plate and the properties of its base metal and welded joints were examined. The results showed that the alloy has good weldability and its strength is higher than that of Hastelloy X which has been widely used for long years.
Keywords	Nickel alloys Heat resistant alloys Gas turbines Combustion chambers Metal plates Solid solutions Chromium containing alloys Cobalt containing alloys Molybdenum containing alloys Acid resistance Weldability Formability Nickel alloy TOMILLOY Nickel alloy CO12 Cr22 Mog Nickel alloy Co8 Cr22 Mo3
Source Agency	Foreign Technology-Mitsubishi Heavy Industries
NTIS Subject Category	71N - Nonferrous Metals & Alloys
Corporate Authors	Mitsubishi Heavy Industries Ltd., Tokyo (Japan).
Supplemental Notes	See also PB83-215889.
Document Type	Technical Report
Title Note	Mitsubishi technical bulletin.
NTIS Issue Number	198413

Development of a Ni-Base Heat Resistant Alloy (TOMILLOY) for Gas Turbine Combustor.

Development of a Ni-Base Heat Resistant Alloy (TOMILLOY) for Gas Turbine Combustor.
PB84170265

Publication Date	1984
Personal Author	Tsuji, I.; Ito, H.; Tsukagoshi, K.; Takeiri, T.; Kurauchi, N.
Page Count	13
Abstract	A new solid solution strengthened Ni-base heat resistant alloy, named TOMILLOY, has been developed for gas turbine combustors. The development of this alloy was carried out in two stages. In the first stage, ten kinds of alloys containing 22% Cr-12% Co-9% Mo-0.3% Al-0.8% Ti-0.005% B-Ni base as the basic composition but varied in the percentages of Co, W, Mo and Cr, were manufactured in the form of plates. The alloy plates were examined with respect to formability, high temperature strength, weldability and oxidation resistance and as the result 22% Cr-8% Co-9% Mo-3% W-0.3% Al-0.8% Ti-0.005% B-Ni base alloy was found to be the most suitable material. In the second stage, two tons of ingot having this chemical composition were melted and hot rolled to 4.8 mm-thick plates. Then, transition pieces were made using the plate and the properties of its base metal and welded joints were examined. The results showed that the alloy has good weldability and its strength is higher than that of Hastelloy X which has been widely used for long years.
Keywords	Nickel alloys Heat resistant alloys Gas turbines Combustion chambers Metal plates Solid solutions Chromium containing alloys Cobalt containing alloys Molybdenum containing alloys Acid resistance Weldability Formability Nickel alloy TOMILLOY Nickel alloy CO12 Cr22 Mog Nickel alloy Co8 Cr22 Mo3
Source Agency	Foreign Technology-Mitsubishi Heavy Industries
NTIS Subject Category	71N - Nonferrous Metals & Alloys
Corporate Authors	Mitsubishi Heavy Industries Ltd., Tokyo (Japan).
Supplemental Notes	See also PB83-215889.
Document Type	Technical Report
Title Note	Mitsubishi technical bulletin.
NTIS Issue Number	198413