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Precious Metals V o l . 3 Part 12 The Monthly Journal of the INSTITUTE OF METALS ind METALLURGICAL ABSTRACTS CONTENTS PAGE Institute News and Announcements 617 Personal Notes 618 Local Sections News [politechnik;] 619 Meetings of O ther Societies 621 Notice to Authors of Papers 622 757. Creep of Lead and Lead Alloys. Part 1.—Creep of Virgin Lead. By J. McKeown 623 758. The Constitution of Silver-Rich Antimony-Silver Alloys. By P. W . Reynolds and W . Hume-Rothery 645 759. An Aluminium Statue of 1893 : Gilbert’s Eros. By R. S. Hutton and R. Sellgman 655 Metallurgical Abstracts 487-628 DECEMBER 1936 Copyright Entered at Stationers' Hall TRADE MARK THIS COPPER-SILICON-MANGANESE ALLOY IS NOW AVAILABLE AS A BRITISH PRODUCT • • • • " EVERDUR ” (i.c.i™Metds Ltd.) offers these outstanding advantages 9 Strength equal to that of steel 9 Remarkable corrosion resistance 9 High fatigue limit • Welds readily by all usual methods O Makes unusually sound castings 9 Excellent machining qualities • Easily worked hot or cold A Comparatively inexpensive The booklet “ Everdur,” in addition to giving further details of these properties, also contains valuable information relating to applications and physical characteristics. “ Everdur” is available as sheet, strip, tube, rod, plates, wire, in all sizes, and also in the form of casting ingots. PLEASE ADDRESS THE COUPON TO IMPERIAL CHEMICAL INDUSTRIES LTD. DEPT. M9, IMPERIAL CHEMICAL HOUSE, LONDON, S.W.I Please send a copy o f the “ Everdur ” booklet Nam e................................................................................................................................. ........ Address..................................................................................................................................... P r in t e d in G r e a t B r it a in b y R ic h a r d C la y a n d S o n s, L im it e d , B u n g a y , S u f f o l k . , L O f * " K i g 1 ^ From our wide range we are able to supply refractory mat­ erials of high quality suitable for most industrial purposes. In our various works, which are modern in design and equipment, care is taken in every stage of manufacture to ensure that our products are maintained at a uniformly high standard. For fuller particulars, ask for our Pamphlet, No. 1. I . T h l - ^ MLTTLS. • * SCOTLAND SURFACE TREATMENT o f ALUMINIUM ITH a view to encouraging W research, the International Alu­ minium Bureau, of which we are members, are offering a prize of 25,000 French francs for new forms of surface finish produced by chemical means. Full particulars and entry forms may be obtained on application. T h e BRITISH ALUMINIUM C o .L td . HEAD OFFICE: ADELAIDE HOUSE. KING WILLIAM STREET. L0N D0N .E.C .4. Telephone - Mansion House 5561 £ 8 0 7 4 (6Linesl. Telegrams ■ CRYOLITE. BILGATE. LONDON. LO NDON W AREHOUSE: BIRM INGHAM .4 : MANCHESTER, 3 : LEEDS, 3= BRISTOL, I NEWCASTLE-ON TYNE. h GLASGOW, C-2: 25-29 Paneras Road N.W.I. Lawley Street 274 Deansgate 66 Kirkstall Road Rose St.. Temple M ilburn House 113 West Regent St AND AT TORONTO. MONTREAL. CALCUTTA. SYDNEY. AND JOHANNESBURG. jiM.1 2 .3 6 a iii WHAT, AGAIN It’s a good thing we had that piece of spare land-we're having to build on it sooner than we expected-still, increasing demands for " Birlec ” Furnaces have compelled yet further factory expansion. We need rather a lot of space because we do everything at " Birlec" Works, from the drawings to the final painting of the finished furnace. W e think the Customer gets a better job that way, and in fact our order book proves it! By having the whole of our design and manufacture under one roof, and handling every aspect of the work OURSELVES, we can ensure that each detail contributes to our main object-SATISFIED users. We're pretty sure we're working on the right lines. Anyway, we're extending-for the FIFTH time I BIRMINGHAM ELECTRIC FURNACES, LTD. TYBURN ROAD, ERDINGTON, BIRMINGHAM BIRLEC FURNACES COVER ALL PURPOSES INCLUDING AN­ NEALING, NITRIDING, TOOL HARDENING, BRIGHT ANNEALING, CARBURISING, RE-HEATING, BRAZING, MELTING, ETC. iv STRONG in t u b e s , 9 o r all purposes metals0 w h cre * tr e n q th e x t r u d e d with Uqhtness BAREtc!,IRE’ 1 s essential. JAMES BOOTH £ COMPANY ( 1 9 1 5 ) LIMITED. ARCYLE STREET WORKS, BIRMINGHAM, 7 . telephone:EAST¡22/(PtQ.Bch.Ex). c7elegrams:'Booth, Birmingham”. Codes:A.B.C.5thl6th.Ed. Lieber's 5 Letter, Bent/eq's Second Phrase. WestQrn Union ALLOYS For the economical production of tubes with absolutely uniform wall thickness we supply TUBE EXTRUSION PRESSES of vertical or horizontal type, also the required power water plants consisting of pressure pumps and accumulators, the latter of the electrically controlled, com­ pressed-air loaded type without any pistons or floats, for which the HYDRAULIK Co. owns patents in all countries of the world. British Agents: Aabacas Engineering Co., Ltd., 10 Canning Place. Liverpool, I vi SHEETS, CIRCLES, MATTING IN 98-99 ° / o PURE METAL ROLLED MANGANESE AND SILICON ALLOYS A LU M IN IU M CORPORATION LTD. WELLINGTON HOUSE, BUCKINGHAM GATE, LONDON, S.W.I Telephone: Whitehall 7665 & 7666 Telegrams: Fluxode, Sowest, London * LASTING MIRROR-BRIGHT DRY BRIGHT AN N EA LIN G WITH SAVING IN OPERATING COSTS Typical bell type bright annealing furnace installation. Output 50 tons per week of copper wire Enquiries to ELECTRIC RESISTANCE FURNACE CO. LTD. EFCO ELECTRIC FURNACE COMPANY LIMITED ELECTRIC RESISTANCE FURNACE CO. LTD. 17 VICTORIA STREET, LONDON, S.W.1 TELEPHONES, ABBEY 4171 (7 lines) TELEGRAMS, ELECTRIFUR, PHONE, LO N D O N Lindum THE IDEAL ZINC-BASE DIE-CASTING ALLOYS The various grades of “ Mazak” are manufac­ tured accurately to patented formulae. Advice will be gladly given as to the alloy best suited to any particular problem. “ Mazak ” alloys are made only by National Alloys Limited. NATIONAL ALLOYS LIMITED ASSOCIATED WITH IMPERIAL SMELTING CORPORATION, LIMITED 95 GRESHAM STREET, L O N D O N , E.C.2 PHONE: METropolitan 9252 SOLE SELLING AGENTS; m orris ashby ltd., 17 laurence pountney LANE, LONDON, E.C.4 PHONE : MANsion House 8383 GRAMS : Ashby, London ix VITREOSIL PURE FUSED HEAT QUARTZ AND AND ACID SILICA PROOF LABORATORY WARE THE THERMAL SYNDICATE LTD. Head Office and Works: WALLSEND-ON-TYNE London Depot: Thermal House, 12-14 Old Pye St., Westminster, S.W.l STERLING METALS LTD COV E N T R Y T.G.S. X A PART OF THE NEW G.E.C. ELECTRIC FURNACE PLANT AT THE FAMOUS COURTYBELLA WORKS The Control Boards. OF THE WHITEHEAD IRON AND STEEL CO., LTD., NEWPORT. Four of the new C.E.C. electric furnaces are shown here, together with recuperative chambers and 32 Grünewald pots. This plant is producing perfect and uniformly annealed strip with a thoroughly bright finish. The G.E.C. process enables strip to be delivered direct from furnace to customer at a cost competing with that of any other process. Advt. of The General Electric Co., Ltd., Magnet House, Kingsway, London, W.C. 2 xi TWO NEW METALLURGICAL BOOKS By Professor F. C. LEA, D.Sc., M.Inst.C.E., M.I.Mech.E., etc. (Dean of the Faculty of Engineering, University of Sheffield) HARDNESS OF METALS CONTENTS. — Introduction — Indentation Tests: Static— Herbert Pendulum Hardness Tester — Scleroscope Hardness Tester— Hardness of Metals at Elevated Temperatures— Dynamic Hardness- Elastic Recovery of Indentations— Hardness and Other Properties— Distribution of Diamond Pyramid Hardness in Hot-drawn Rod and Cold-drawn W ires—Hardness and Embrittlement of Steels— Hardness and Fracture— Specifications of Hardness, and Accuracy to be Expected in Measuring Hardness— Hard­ ness of Rocks and Like Substances— General Comparison of Results from Various Machines and Indenters of Varying Forms— Index of Tables.—General Index. In Medium 8vo. With 85 illustrations (including many graphs) and 52 Tables. 150 pages. Price 12s. 6d. net. Post 6d., Abroad, 9d. By P. L. TEED, A.R.S.M., M.I.M.M. (of Messrs. Vickers (Aviation), Ltd.) DURALUMIN AND ITS HEAT-TREATMENT CONTENTS.—Introductory— Development of Duralumin—Function of Constituents—Age-Hardening Heat-Treatment—Annealing—Properties of Annealed Duralumin—“ Normalising” —Age-Hardening: Further Considerations—Effect of Stove-Enamelling Temperatures—Deleterious Effects of “ Normalis­ ing ” — Miscellaneous.—Index. In Medium 8vo. With 20 illustrations (including 3 plates), and 61 Tables. 125 pages. Price 12s. 6d. net. Post 6d., Abroad, 9d. CHARLES GRIFFIN & CO., LTD., 42 Drury Lane, London, W.C.2. THE UNIVERSITY OF SHEFFIELD FACULTY OF METALLURGY Professor . J. H. ANDREW, D.Sc. HE Department of Metallurgy, situated in the centre of the T steel industry, is specially equipped for instruction in the Metallurgy of Iron and Steel, Non-ferrous Metallurgy and Foundry Science. The course extends over three years for the Pass Degree of B.Met., and four years for the Degree with Honours. The labora­ tories include a thoroughly equipped foundry for Iron and Steel and Non-ferrous Metallurgy; and all facilities for heat-treatment are provided. The research laboratories are equipped for thermal, micrographical, magnetic and mechanical investigation of metals, and for X-ray analysis. There is also a large-scale plant for the cold-working of metals. The Department also includes a special laboratory for the testing and investigation of refractory materials. The higher degrees of M.Met., D.Met., and Ph.D. are awarded. Appli­ cations for admission should be made to the Professor. W. M. GIBBONS, R e g is tra r. xii LEITZ BINOCULAR PRISM MAGNIFIERS with wide field of view Inexpensive instruments for the examination of metal surfaces, fractures, welding seams, re­ fractory materials, etc. High Power Model Low power body for magnifications X 3-5, x 7, x 10 5 and X 14 High power body for magnifications x 10, x 20, x 30 and x 40 Interchangeable stands for all types of work W riie for Catalogue to: E.
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