... Publishers, 19 73. D. A. Porter and K. E. Easterling, Phase Transformations in Metals and Alloys, 2nd edition, Chapmanand Hall, 19 92. M. C. Flemings, Solidification Processing, McGraw-Hill, 19 74. 10 8 Engineering ... metals. Liquid met-als do not polymerise and it is very hard to stop them crystallising when they areundercooled. In fact, cooling rates in excess of 10 10 °Cs 1 are needed to make puremetals ... (wt%)sy(MPa)Slowly cooled Quenched and aged2000 Al + 4 Cu + Mg, Si, Mn 13 0 4656000 Al + 0.5 Mg 0.5 Si 85 210 7000 Al + 6 Zn + Mg, Cu, Mn 300 570Work hardeningCommercially pure aluminium (10 00...