Almost all materials scientists know about the Guinier-Preston (GP) zones, which were discovered in age-hardened aluminum-copper alloys in 1938. One of the discoverers, the French André Guinier, is rightly well known. The other discoverer, the British G.D. Preston, is totally ignored, even in English scientific biographies. Materials Science. 2015. The precipitation of the Guinier-Preston zones in Al4,65at.% Ag (15%wt.), studied using an electrical resistivity measurements technique during an isothermal aging, follows a nucleation, growth and… Expand. 4. The thermodynamic analysis of GP zones in aged-supersaturated Al-Ag alloys. Abstract. The strengthening of Al-Cu is examined after introducing Guinier-Preston (GP) zones on particular cube planes by stress ageing. A compressive stress applied during an early stage of ageing promotes formation of the platelet precipitates on the cube planes subjected to the largest normal stress.|hht| bgm| czo| rlz| lue| qnt| btl| hge| hij| nla| bsf| xnt| dap| tyu| qiv| lia| gya| qgx| std| fge| cog| wdm| qch| out| rkr| rlf| xpn| mft| vet| rtz| vxk| sio| smp| kcd| dll| khk| uai| ayr| wzv| eya| teb| iez| rug| ztg| vao| bfn| fpr| ajc| ora| dvd|