Abstract: A method of producing a profiled plate in a metal alloy by rolling the plate through a four high mill, the work rolls having pockets to accommodate the thicker portion of the plate, the work rolls rolling the plate and discharging it on the side opposite the side into which it was fed.

Abstract: A weldable titanium alloy particularly intended for use at high temperatures and under conditions of high stress in aircraft engines, the alloy having the composition 5.6% aluminium, 4% tin, 4% zirconium, 1% niobium, 0.25% molybdenum, 0.5% silicon, 0.05% carbon, optionally containing 0.2% tungsten and being used in the heat treated condition. The heat treatment would normally comprise a solution treatment above the beta transus, typically at 1080.degree. C., and an ageing or stress relieving treatment at a temperature of approximately 650.degree. C. for approximately 24 hours.

Abstract: Creep resistant titanium alloys containing aluminum, zirconium, molybdenum and germanium plus optional silicon, carbon, tin and niobium.

Abstract: A method of manufacturing a porous body using particulate material as a starting stock. The particles are inserted in a can, the can evacuated and inert gas admitted to a predetermined back-fill pressure. After hot isostatic pressing, the compact so formed is cooled and subsequently heat treated to permit the pores formed in pressing to expand and form a porous body.

Abstract: A high strength titanium alloy capable of being used at elevated temperatures, the alloy containing 3.5-5.65% aluminium, 3.0-8.1% tin, with a total aluminium equivalent in the range 6.1-6.8%, 4.5-7.5% zirconium, 1.5-3% molybdenum, 0.2-0.6% silicon, balance titanium apart from incidental impurities, the alloy having good hardenability and having uniform hardenability throughout its depth, the alloy being weldable, resistant to crack propagation and having a good balance of properties suitable for use in applications requiring high strength at elevated temperatures.