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METHOD OF OBTAINING VOLUMETRIC BLANKS OF HIGH-MANGANESE STEEL WITH RECRYSTALLIZED FINE-GRAINED STRUCTURE

机译：再结晶细晶粒结构的高锰钢体积冲裁法

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摘要

FIELD: metallurgy.;SUBSTANCE: invention relates to metallurgy, particularly, to production of blanks from high-manganese steels of austenitic class with fine-grained structure used in production of power elements of car body. Method involves homogenization annealing at temperature of 1423 K for 1 hour and hot deformation-thermal treatment. Said treatment is carried out by hot rolling of billet to deformation degree 1 at temperature of 1423 K and subsequent thermomechanical treatment by forging at constant temperature from range of 1073 to 1273 K with true degree of deformation of not less than 1 at constant deformation rate in range from 10^-2 up to 10^-4 s^-1 followed by instant quenching into water.;EFFECT: method enables to obtain a homogeneous dynamically recrystallized fine-grained structure in bulk billets of high-manganese austenitic steels with a unique combination of high strength and plasticity, the product of which σ_B×δ is not less than 49 000 MPa×%.;1 cl, 2 dwg, 1 tbl, 2 ex

机译：冶金技术领域本发明涉及冶金学，特别是涉及一种由奥氏体级高锰钢制造的，具有细小晶粒结构的坯料的生产，该坯料用于制造车身的动力元件。该方法包括在1423 K的温度下均质退火1小时，然后进行热变形热处理。通过在1423K的温度下对坯料进行热轧至变形程度1，然后通过在1073至1273K的范围内的恒定温度下以恒定的变形率在真实变形度不少于1的条件下进行锻造来进行热机械处理，从而进行所述处理。范围从10 ^{-2 到10 ^{-4 s ^{-1 ，然后立即淬火入水中。效果：该方法能够获得均质具有高强度和塑性的独特组合的高锰奥氏体钢大方坯中的动态再结晶细晶粒组织，其乘积σ_{B ×δ不小于49 000 MPa×％。 ; 1 cl，2 dwg，1 tbl，2 ex}}}}

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公开/公告号RU2692539C1

专利类型
公开/公告日2019-06-25

原文格式PDF
申请/专利权人 FEDERALNOE GOSUDARSTVENNOE AVTONOMNOE OBRAZOVATELNOE UCHREZHDENIE VYSSHEGO OBRAZOVANIYA BELGORODSKIJ GOSUDARSTVENNYJ NATSIONALNYJ ISSLEDOVATELSKIJ UNIVERSITET (NIU BELGU);
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申请/专利号RU2018145958
发明设计人 DOLZHENKO PAVEL DMITRIEVICH (RU);TIKHONOVA MARINA SERGEEVNA (RU);BELYAKOV ANDREJ NIKOLAEVICH (RU);KAJBYSHEV RUSTAM OSKAROVICH (RU);
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申请日2018-12-24
分类号C21D8;
国家 RU
入库时间 2022-08-21 11:46:10

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