关于GJB 2744A-2007中TC18钛合金显微组织评级图的修订意见

Revision opinion on the microstructure rating chart of TC18 titanium alloy in GJB 2744A-2007

本文研究了GJB 2744A-2007中图4《TC18钛合金显微组织评级图》,结合图3、图5以及生产实践认为:图4中1类~9类排序错误。修正后的排序为:1、2、7、4、5、8、3、6、9。

In this paper,the TC18 Titanium Alloy Microstructure Rating Chart of GJB 2744A-2007 is studied.In combination with Figure 3 and Figure 5 and the production practice,the ordering of Type 1 to 9 in Figure 4 is incorrect.The revised order is:1,2,7,4,5,8,3,6,9.