caa a22 4500 388021330 CHVBK 20180307124925.0 cr unu---uuuuu 161130e199802 xx s 000 0 eng 10.1557/JMR.1998.0042 doi S0884291400042795 pii (NATIONALLICENCE)cambridge-10.1557/JMR.1998.0042 Investigation of Al-Pb nanocomposites synthesized by nonequilibrium processes [Elektronische Daten] Two nonequilibrium processes (melt-spinning and ball-milling) were successfully employed to synthesize Al1−xPbx (x = 5, 10, 20, 30 wt. %) nanocomposites with distinct microstructures. In the melt-spun (MS) Al-Pb alloys, the nanometer-sized Pb particles are uniformly distributed in the micrometer-grained Al matrix and have an orientational relationship with the matrix, while in the ball-milled (BM) samples, both Pb and Al components are refined with prolonged milling time, forming nanocomposites with Pb particles homogeneously dispersed into the Al matrix. The minimum particle size of Pb in the milled samples linearly increases with the Pb content. The microhardness of the BM Al-Pb samples is much larger than that of the MS samples, which mainly results from strengthening effects of the nanometer scale Al grains following the Hall-Petch relationship. The microhardness for both BM and MS Al-Pb samples varies with the Pb content, and maximum hardness for both samples exists when Pb content is about 5 wt. %, indicating that small amounts of Pb, in the form of nanoparticles, may strengthen the Al matrix. Copyright © Materials Research Society 1998 Sheng H. W. State Key Laboratory for RSA, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110015, People's Republic of China Zhou F. State Key Laboratory for RSA, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110015, People's Republic of China .Hu Z. Q. State Key Laboratory for RSA, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110015, People's Republic of China Lu K. State Key Laboratory for RSA, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110015, People's Republic of China Journal of Materials Research Cambridge University Press 13/2(1998-02), 308-315 0884-2914 13:2<308 1998 13 JMR https://doi.org/10.1557/JMR.1998.0042 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1557/JMR.1998.0042 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Sheng H. W. State Key Laboratory for RSA, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110015, People's Republic of China NATIONALLICENCE 700 1- Zhou F. State Key Laboratory for RSA, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110015, People's Republic of China NATIONALLICENCE 700 1- .Hu Z. Q. State Key Laboratory for RSA, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110015, People's Republic of China NATIONALLICENCE 700 1- Lu K. State Key Laboratory for RSA, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110015, People's Republic of China NATIONALLICENCE 773 0- Journal of Materials Research Cambridge University Press 13/2(1998-02), 308-315 0884-2914 13:2<308 1998 13 JMR CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge