Forging and heat treatment method of Haynes 242 alloy forge piece
A heat treatment method, aging heat treatment technology, applied in the direction of metal processing equipment, etc., can solve the problem of less reference information, and achieve the effect of uniform grain structure, good high-temperature durability and mechanical properties, and fine grain size
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Embodiment 1-5
[0026] A kind of forging method of Haynes242 alloy forgings, Haynes242 alloy blanks are carried out upsetting, punching, saddle reaming, final rolling according to the heating temperature condition shown in Table 1, and the holding time is blank effective thickness * 6min / 10mm, make Its deformation amount is 30%, obtains Haynes242 alloy forging, and the grain size of described forging is as shown in table 1;
[0027] Table 1
[0028]
[0029]
Embodiment 6
[0031] The Haynes242 alloy forging obtained by forging Examples 1-5 is carried out solution heat treatment 60min under the conditions shown in Table 2 respectively; Its grain size is as shown in Table 2:
[0032]
[0033] Combining the results of Table 1 and Table 2, it can be seen that the forging temperature is 1030°C or 1050°C, and the heat treatment system is 1038°C or 1060°C.
Embodiment 7
[0035] Two samples were randomly taken from each group of Haynes242 alloy forgings forged in Examples 1-5 and solution heat treated at 1038°C, 1060°C, 1080°C, and 1093°C respectively, and all samples were aged at 649°C for 48 hours. Afterwards, 649°C high-temperature tensile and 649°C durability tests were carried out, and two test materials were taken from each group for measurement. The results are shown in Table 3:
[0036] table 3
[0037]
[0038]
[0039] It can be seen from the results in Table 3 that the forgings subjected to solution heat treatment at 1038°C and 1060°C have the characteristics of high strength and poor plasticity; the forgings treated at 1093°C solution heat treatment have poor plasticity and low strength, while the Forgings subjected to solution heat treatment at 1080°C have better properties.
[0040] The forging samples after 1080°C×60min solution heat treatment and 649°C×48h aging heat treatment were subjected to 649°C high temperature comb...
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