深冷处理对LC9铝合金力学性能及摩擦因数的影响  

Effects of cryogenic treatment on mechanial properties and friction coefficient of LC9 aluminum alloy

作　　者：刘辉[1] 张连勇[1] 姜艳华[1] 

机构地区：[1]辽宁工程技术大学机械工程学院,辽宁阜新123000

出　　处：《金属热处理》2013年第6期86-88,共3页Heat Treatment of Metals

摘　　要：探讨了深冷处理对LC9铝合金力学性能和摩擦因数的影响。结果表明,深冷处理后LC9铝合金的硬度、弹性模量、硬弹比和弹性回复系数分别为2.54 GPa、72.61 GPa、0.035和57.95%,较退火态的分别提高了52.10%、16.38%、34.62%和82.87%,摩擦因数则降低了10.28%,其抗压痕变形能力显著提高。Effects of cryogenic treatment on mechanial properties and friction coefficient of LC9 aluminum alloy were investigated. The results show that the hardness, elastic modulus, ratio of hardness to modulus and elastic recovery rate of the LC9 aluminum alloy after cryogenic treatment are 2.54 GPa, 72.61 GPa, 0. 055 and 57.95% , compared with annealed alloy, increased by 52.10% , 16.38%, 34.62% and 82. 87% , respectively, but friction coefficient is decreased by 10.28%, and the anti-indentation creep of the alloy is improved effectively.

关 键 词：LC9铝合金 深冷处理 纳米压痕 力学性能 摩擦因数 

分 类 号：TG156.91[金属学及工艺—热处理]