Practical use of our patents

(As of June 2002)

Alloy Design Computer Program

Licensed to: Rolls-Royce plc. (UK)
Summary: An alloy design computer program for Ni-base superalloys. The microstructural parameters and high temperature properties of Ni-base single crystal superalloys with any composition are predicted by this program. (e.g, Harada H, et al: Proc. of 5th Int. conf. on Creep and Fracture of Engineering Materials and Structures, Swansea, Wales U.K., The Institute of Materials; 1993, p255.)
Receipts: 11 million JPY(total)

Third Generation Single Crystal Superalloy, TMS-75

Licensed to: Ross & Catherall ltd. (UK)
Summary: An alloy TMS-75 with a multi chemical composition, having 3 wt% Cr, 5 wt% Re, etc. has a good balance of creep strength over intermediate and high temperatures. Typical creep rupture lives at 900 deg.C - 392MPa and 1100 deg.C - 137MPa being 961h and 227h, respectively. (e.g, Kobayashi T, et al: 4th Charles Parsons Turbine Conference. Newcastle upon Tyne (U.K.) 1997. p.766.)
Receipts: 1.6 million JPY(total)

Second Generation Single Crystal Superalloy, TMS-82+

Licensed to: Ross & Catherall ltd. (UK)
Summary: An alloy TMS-82+ with a moderate 2.4 wt% Re addition, has a higher creep rupture strength than the second generation single crystal superalloys such as CMSX-4 and Rene N5, and even the third generation single crystal superalloys. Typical creep rupture lives at 900 deg.C - 392MPa and 1100 deg.C - 137MPa being 584h and 375h, respectively. (e.g, Hino T, et al: Superalloy 2000, Seven Springs (PA): The Metallurgical Society; 2000. p.729.)
Receipts: 0.4 million JPY(total)

Non-contact Extensometer for High Temperature Creep Test

Licensed to: Toshin Kogyo ltd. (JPN)
Summary: The displacement of specimen during the creep test is detected by the image processing using two marker images of specimen through high resolution CCD camera. This Extensometer is a non-contact type, and it can eliminate the factor of measuring error due to the deformation of extensometer itself at high temperatures over 900 deg.C.
Receipts: 0.18 million JPY(total)

Those who are interested in purchasing alloys TMS-75, TMS-82+ and any of TMS alloys are welcome to contact either,

(Alloy developer)
Hiroshi Harada
High Temperature Materials 21 Project,
National Institute for Materials Science,
1-2-1 Sengen, Tsukuba Science City, Ibaraki, 305-0047, Japan


(Ingot supplier)
Nick Gravill
Technical Manager
Ross and Catherall
0114 247 9818 Direct Dial
0114 248 6404 Site Reception (ext 230)
0114 247 5999 Fax

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Last modified: Mon Dec 15 15:47:20 LMT 2003