Microstructure and Mechanical Properties of Thermomechanically Forged Tempering Steel 42CrMo4
Microstructure and Mechanical Properties of Thermomechanically Forged Tempering Steel 42CrMo4
复制标题
热机械锻造回火钢42CrMo4的显微组织和力学性能
DOI：
10.1007/978-3-662-62138-7_15
复制
发表时间：
2021
期刊：
影响因子：
--
通讯作者：
Behrens
中科院分区：
文献类型：
--
作者：
Diefenbach;Brunotte;Behrens
热机械处理（TMT）材料的特点是具有细晶粒的微观结构，从而具有非凡的机械性能。本研究采用合金化回火钢42CrMo4 (AISI 4137)，建立了中间冷却两步TMT镦粗工艺。采用水气冷却系统，通过改变目标温度和冷却速率来调节两步间不同的相配置。从成形部件中切割出夏比冲击试验和拉伸试验以及金相分析的标准化试样。拉伸试验表明，经快速冷却后成形，无需额外热处理，屈服强度可提高至1188 MPa，断裂伸长率可达12%左右。在调质状态下满足标准要求。该工艺路线允许通过调整成形条件方便地进行局部载荷定制零件的设计和制造。
Thermomechanically treated (TMT) materials are characterized by a fine-grained microstructure, which leads to extraordinary mechanical properties. In this study, the alloyed tempering steel 42CrMo4 (AISI 4137) is used to set up a two-step TMT upsetting process with intermediate cooling. A water-air based cooling system was used to adjust different phase configurations between the two steps by varying the target temperature and cooling rate. Standardized test specimens for Charpy impact tests and tensile tests as well as for metallographic analyses are cut out of the formed parts. Tensile tests showed that the yield strength can be enhanced up to 1188 MPa while the elongation at break is about 12% without any additional heat treatment by forming the material after rapid cooling. This fulfills the demands of the standard in quenched and tempered state. This process route allows for local-load tailored part design and manufacturing by adjusting the forming conditions conveniently.
影响因子：
4.1
作者：
Tekkaya, A. E.;Allwood, J. M.;Yanagimoto, J.
通讯作者：
Yanagimoto, J.
影响因子：
1.8
作者：
Foydl, A.;Segatori, A.;Tekkaya, A. E.
通讯作者：
Tekkaya, A. E.
EcoForge：Energieeffiziente Prozesskette zur Herstellung von Hochleistungs-Schmiedebauteilen*
DOI：
--
发表时间：
2014
期刊：
影响因子：
--
作者：
M. Fischer;H. Dickert;W. Bleck;Adis Huskic;Mohammad Kazhai;T. Hadifi;A. Bouguecha;B. Behrens;Nadja Labanova;A. Felde;M. Liewald;F. Egorov;M. Gabrecht;E. Brinksmeier;W. Reimche;O. Bruchwald;W. Frackowiak;H. Maier;T. Bucquet;B. Hinrichs;U. Fritsching;T. Hoja;F. Hoffmann;H. Zoch
通讯作者：
H. Zoch