From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Series of material tests to be conducted on various aluminium alloys.
| Identifier | ExFiles\Box 36\3\ scan 042 | |
| Date | 15th May 1917 | |
| To R.{Sir Henry Royce} from EFC. -2- EFCa/T15.5.17. Contd. -------------------- We have been in conversation with Mr. Hall concerning magnalium, and he is of the opinion that one cannot obtain aluminium alloy, of a lower specific gravity than pure aluminium, which is 2.57, there is still, however, a great difference in the specific gravity between magnalium and our crankcase alloy. With reference to your memo FA/B24417, we have now instructed up (a) Stanton Impact Tests. (b) Upton-Lewis Fatigue Tests. (c) Tensile Tests at Atmospheric Temperature. (d) Tensile Tests at various temperatures up to the maximum temperature obtained by the pistons. (e) Specific Gravity and Brinell Hardness Tests, for the whole range of alloys referred to in your memo. EFC, R.R. 525 A.{Mr Adams} (400) (S) C. 886-2-16 (D) 1546 | ||