第6部分讨论金相照片定倍打印的实现原理。
Part 6 discusses the principle of the metallographic image printing with fixed sizes.
通过金相照片可见在二硼化钛含量较低时，各增强相在基体中分散较均匀。
We can find each reinforcement phase in the matrix is more uniform dispersion by Metallographic photos when the content of TiB2 is lower.
采用与模拟一致的工艺参数对铝合金板材分别进行点焊实验，制取接头低倍金相照片，并测量熔核直径和焊透率。
Do spot welding experiments to aluminum alloy plate in the same condition of simulation, prepare low magnification metallographic photos of joint, and measure nugget diameter and penetration rate.
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