孪晶界阻碍位错运动导致高的加工硬化率；
The twin boundaries act as strong obstacles to the dislocation motion, so lead to higher strain-hardening.
有序化形成第二相粒子后阻碍位错运动，提高合金强度。
It leads to form the second phase particle, which hinder dislocation motion and improve alloy intensity.
这两种相都能阻碍位错运动，对合金起到很好的强化作用。
All of the two phases can impede dislocation movement, also play a very important role for strengthening the alloys.
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