近以钦合金的室温变形主要由位错滑移控制，20 K下的变形则由位错滑移和孪生变形共同控制。
The deformation of near a titanium alloy at RT is controlled by dislocation slip while at 20k is under the mutual control of dislocation slip and twinning.
主要归纳为两类：一类是以五次孪生方式生长；另一类是以位错和微孪晶共存生长。
There exists two typical microstructure in crystals of different diamond films, one is mainly five-fold twins, the other is mainly dislocation and micro twins coexisting.
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