SU176945A1 - Method of heat treatment of welds of austenitic-ferritic steel - Google Patents
Method of heat treatment of welds of austenitic-ferritic steelInfo
- Publication number
- SU176945A1 SU176945A1 SU914330A SU914330A SU176945A1 SU 176945 A1 SU176945 A1 SU 176945A1 SU 914330 A SU914330 A SU 914330A SU 914330 A SU914330 A SU 914330A SU 176945 A1 SU176945 A1 SU 176945A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- welds
- austenitic
- heat treatment
- ferritic steel
- aging
- Prior art date
Links
- 229910000831 Steel Inorganic materials 0.000 title description 3
- 238000010438 heat treatment Methods 0.000 title description 3
- 239000010959 steel Substances 0.000 title description 3
- 230000032683 aging Effects 0.000 description 6
- 238000000137 annealing Methods 0.000 description 2
- 229910001566 austenite Inorganic materials 0.000 description 2
- 229910000529 magnetic ferrite Inorganic materials 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Description
Известен способ термической обработки сварных швов аустенитно-ферритных сталей, упрочн емых старением, по которому дл устранени хрупкости сварного шва после старени примен ют местный отжиг.A known method of heat treatment of welds of austenitic-ferritic steels, hardened by aging, according to which local annealing is used to eliminate the brittleness of the weld after aging.
Предложенный способ отличаетс от известного тем, что перед старением, непосредственно после сварки, сварной шов нагревают до температуры оптимального соотношени б-феррита и аустенита (примерно 1 : 1) и закаливают в воде или на воздухе.The proposed method differs from the well-known fact that before aging, immediately after welding, the weld is heated to the temperature of the optimal ratio of ferrite and austenite (approximately 1: 1) and quenched in water or in air.
Описанный способ позвол ет получить пластичное и равнопрочное сварное соединение, без местного отжига после старени , которыйThe described method allows to obtain a ductile and equal strength welded joint, without local annealing after aging, which
осложн ет технологический процесс и снижает прочность сварного соединени .complicates the process and reduces the strength of the welded joint.
Предмет изобретени Subject invention
Способ термической обработки сварных швов аустенитно-ферритных сталей, упрочн емых старением, отличающийс тем, что, с целью получени пластичного и равнопрочного сварного соединени , сварные швы перед старением нагревают до температуры оптимального соотношени б-феррита и аустенита примерно 1 : 1 и закаливают в воде или на воздухе .The method of heat treatment of welds of austenitic-ferritic steels, hardened by aging, characterized in that, in order to obtain a ductile and equal strength welded joint, the welds are heated before aging to an optimum ratio of b-ferrite and austenite of approximately 1: 1 and quenched or on the air.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU176945A1 true SU176945A1 (en) |
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