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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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预应变对tini薄膜相变温度及热滞的影响
Keywords: tini薄膜,预应变,相变温度,相变滞后
Abstract:
？用电阻法研究了预应变对ti51ni49(原子分数)薄膜相变温度及相变热滞后的影响,结果表明;tini薄膜马氏体态预变形后,第一次逆相变开始温度a^{d}_{s}随预应变量的增大而升高,而第一次马氏体相变温度m_{s}和第二次逆相变开始温度a_{s}的变化与预应变量(ε_d)相关:当ε_d5%时,m_{s}和a_{s}随ε_d的增大而升高;预应变后tini薄膜的相变热滞(a^{d}_{s}-m_{s})也随ε_d的增加而增大,但当ε_d>5%时,其值开始减小.预变形引起ti51ni49薄膜的相变温度和热滞的变化与弹性应变能的变化及位错有关.
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