GB/T 14999.4-1994 Test methods for microstructure of high temperature alloys

This standard is applicable to the purity, grain size and banded structure test of iron-based and nickel-based high-temperature alloy plates and bars. GB/T 14999.4-1994 High-temperature alloy microstructure test method GB/T14999.4-1994 Standard download decompression password: www.bzxz.net

National Standard of the People's Republic of China
Test method for microstructure of high temperature alloys
Methode of examining micro-lirucluresFor hsatresiiting superalloysCR149935
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This standard is suitable for pure living bottom of long quality, high return alloy and mourning materials, and is suitable for grain competition and kidney-shaped tissue test. 1. Cutting and preparation of test specimens
1.1 The effect of each selection is in the standard of technical conditions. 1. The sample can be used in cold and hot ways. The heat will not have a great impact on the temperature. The test temperature is ~, and the test piece is 0x ra
13 According to the number of technical records, the processing test is determined at the place where the test is made. 1.4 When the test height is not greater than 32mm, the sliding plate level is tested to 1/2 of the average test surface, and the centripetal sense of the test surface is the anti-axis center (usually), and the diameter is greater than, and the test surface should be made to be in the center (inquiry is, nm)
1.5 After the sample is put under the gun, it is polished on the reverse disk, and then polished on the polishing machine (the market uses the output light). The good Wo flow reads the small clean taste ten, and the more material the sample is naturally reflected, 2 test the annoyance
2.; For the unique product particles and the fast-moving non-Eastern design, the reagent can be used for the male 1 capsule 2 said one of the reagents (must be you,),
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3.1 The standard is
3.1.1 The test piece is placed on the metallographic inspection environment of 110 pieces. The actual inspection point is 6.8..01 (0.m vertical light, 10m standard). 3,1.2 The standard adopts a single rating rate, based on the sensitivity of the purchased plan, the distribution score is 1~, and the detailed network is compared and determined.
3,1,3 The level of deep light is based on the seriousness of the observation on the test piece. 1.1.4 The shrinkage level is divided into: Class I: Class II: Class II: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III: Class III 0,9,10 short-term products are standard products, and the previous state is determined under different times of release. The next year's fast discount rate is 3-2.3
An 3 is not effective. The general special
.2.4, if the style of the explosive product wheel is not in the trend of hooking the class phenomenon, after the recent demand, it belongs to the phenomenon of adjusting the small milk, not counting, etc., let the total count of the small product pull the full area of ​​the model you teach the product model area, not,! G0/T14999.4--S4
Remember this kind of grain, no tonnage does not change to short-term special display. Its policy says that the price of the level 3.2.3GHC95 joint enterprise's 1-level product effect is calculated by the number of network indicators, that is, the total of 5 frequency product grains in the total of the country's self-efficiency.
5.2.B The amount of the product that is not included in the actual amount of the organization, .1.7 The ten-year-old milk is small and the product is recorded or the regulations are in the basic position. The individual product of the product is recorded as the total time of the tour purchase, such as: ~8 many products have ten different (small! 0) 6 how low grain time, recorded as? ~8 (day): On the contrary, the product grain of my ten strokes (careful suction) is more than the Huati product hour quantity record, in? The product grain is almost net strict teaching, for?
.2. Product performance evaluation diagram is the full quantity of the corresponding technical conditions for the type and grade diagram. The diagram is used as the standard for the type and grade. The diagram is used as the standard for the type and grade. The diagram is used as the standard for the type and grade. The diagram is used as the standard for the type and grade. The diagram is used as the standard for the type and grade. The diagram is used as the standard for the type and grade. The diagram is used as the standard for the type and grade. The diagram is used as the standard for the type and grade. The diagram is used as the standard for the type and grade. The diagram is used as the standard for the type and grade. The diagram is used as the standard for the type and grade. The diagram is used as the standard for the type and grade. The diagram is used as the standard for the type and grade. The diagram is used as the standard for the type and grade. The diagram is used as the standard for the type and grade. The diagram is used as the standard for the type and grade. The diagram is used as the standard for the type and grade. The diagram is used as the standard for the type and grade. The diagram is used as the standard for the type and grade. The diagram is used as the standard for the type and grade. The diagram is used as the standard for the type and grade. The diagram is used as the standard for the type and grade. The diagram is used as the standard for the type and grade. The diagram is used as the standard for the type and grade. 3.3.4 The evaluation method of the product band is to set the product band along the true old or radius from one side to the other side. 3.3.5 The evaluation method of the common number distribution of the product grain quality; the evaluation level is determined by the average percentage of the two cases from one side to the other. 3.3.6 The evaluation method of the product band is to determine the grade of the product. The size of the product is determined by the Arabic word "lightweight". The denominator of the first base word "Chuan Roman" indicates the age of the world. Two Arabic words are required to indicate the size of the fine product in the organization.
—(5-8)
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Figure——indicates the normal amount of difference, the coplanar pregnancy is greater than -40; (5This band shows the previous product starting period missing level
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This international promotion of the central step people related to the common benefit area information all workers in Beijing Xing jointly issued. Yongbiao Steam Turbine Factory is responsible for the allocation of tickets
This cooperation produces a single purchase order containing the careful transmission and the party to which it is directed. This standard trusts the cold gold: 1 industry marking chemical research institute position special abandoned.
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