caa a22 4500 463227174 CHVBK 20180405153230.0 cr unu---uuuuu 170326e20070501xx s 000 0 eng 10.1007/s10853-006-1343-6 doi (NATIONALLICENCE)springer-10.1007/s10853-006-1343-6 Temperature and dwell time effect on hardness of Al-base alloys [Elektronische Daten] [F. Abd El-Salam, L. Wahab, R. Nada, H. Zahran] The hardness of Al-5wt%Zn (alloy A) and Al-5wt%Zn-0.25wt%In (alloy B) was measured at room temperature for samples heat treated in the range 300-453K and dwell times in the range 30-300s under 50gm load. Softening was observed for all the samples and the hardness decreased with increasing temperature and/or dwell time. Hardness drop was larger for alloy (B), which in general showed higher hardness than alloy (A). The stress exponent n increased with increasing temperature and showed high values falling in the power law breakdown region. The parameters deduced from the analysis of X-rays data and micrographs were found to be consistant with the calculated mechanical data. Springer Science+Business Media, LLC, 2007 Abd El-Salam F. Physics Department, Faculty of Education, Ain Shams University, Cairo, Egypt aut Wahab L. National Centre for Radiation Research and Technology, Nasr-City, Cairo, Egypt aut Nada R. Physics Department, Faculty of Education, Ain Shams University, Cairo, Egypt aut Zahran H. Physics Department, Faculty of Education, Ain Shams University, Cairo, Egypt aut Journal of Materials Science Springer US; http://www.springer-ny.com 42/10(2007-05-01), 3661-3669 0022-2461 42:10<3661 2007 42 10853 https://doi.org/10.1007/s10853-006-1343-6 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-006-1343-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Abd El-Salam F. Physics Department, Faculty of Education, Ain Shams University, Cairo, Egypt aut NATIONALLICENCE 700 1- Wahab L. National Centre for Radiation Research and Technology, Nasr-City, Cairo, Egypt aut NATIONALLICENCE 700 1- Nada R. Physics Department, Faculty of Education, Ain Shams University, Cairo, Egypt aut NATIONALLICENCE 700 1- Zahran H. Physics Department, Faculty of Education, Ain Shams University, Cairo, Egypt aut NATIONALLICENCE 773 0- Journal of Materials Science Springer US; http://www.springer-ny.com 42/10(2007-05-01), 3661-3669 0022-2461 42:10<3661 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer