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本文通过惯习面各种变态晶面的组合及其夹角的计算,以及蝶状马氏体翼片张角的金相测算,确定出蝶状马氏体翼片的实际张角可有139°、137°、121°、119°、97°、83°、61°、59°、43°、41°10种角度;在晶体学上每种张角出现的频数是不同的,频数最大的是97°及其补角83°,频数最小的是121°及其补角59°。在金相观察及测算中还发现,大多数磨面张角为120°～140°,在同一晶粒中,实际张角有呈互为补角的形态。本文还对其他研究者的两对电子衍射的惯习面数据进行了计算,结果表明,这两对蝶状马氏体翼片的实际张角分别为41°及83°。用逐次抛光法进行测算,发现所测的蝶状马氏体的翼片实际张角为119°。
In this paper, through the combination of various metamorphic facets and the calculation of the included angle, and the metallographic calculation of the wing angle of the butterfly martensite, the actual opening angle of the butterfly martensite wing is determined to be 139 °, 137 °, 121 °, 119 °, 97 °, 83 °, 61 °, 59 °, 43 °, 41 °; the frequency of each opening angle in crystallography is different and the frequency is the largest Is 97 ° and its complement 83 °, the smallest number is 121 ° and its complement 59 °. Metallographic observation and calculation also found that most of the grinding face opening angle of 120 ° ~ 140 °, in the same grain, the actual angle with each other complement each other shape. The other two pairs of electron diffraction of the habitual surface data of other researchers are also calculated. The results show that the actual opening angles of the two pairs of butterfly martensite foils are 41 ° and 83 °, respectively. By the successive polishing method, it was found that the actual flank angle of the butterfly martensite measured was 119 °.