弥散分布的纳米碳化钒颗粒能明显提高TWIP钢的屈服强度,但同时将在一定程度上降低加工硬化率.采用一个修正的物理模型来研究纳米碳化钒颗粒对一种实验室等级的FeMnC奥氏体TWIP钢加工硬化率的影响.试验发现在塑性变形过程中弥散分布的纳米碳化钒颗粒会加快位错累积速率,但也会降低孪晶形成速率.与不含析出相的TWIP钢相比,在小应变时含纳米碳化钒颗粒的TWIP钢加工硬化率较高,但随着应变量的增加其硬化率减小的速度高于不含析出相的TWIP钢,因此在高应变条件下含纳米碳化钒颗粒的TWIP显示出较低的钢加工硬化率.
参考文献
| [1] | Bouaziz, O.;Allain, S.;Scott, C.P.;Cugy, P.;Barbier, D. .High manganese austenitic twinning induced plasticity steels: A review of the microstructure properties relationships[J].Current opinion in solid state & materials science,2011(4):141-168. |
| [2] | Colin Scott;Blandine Remy;Jean-Louis Collet;Aurelie Cael;Cuimin Bao;Frederic Danoix;Benoit Malard;Caroline Curfs .Precipitation strengthening in high manganese austenitic TWIP steels[J].International Journal of Materials Research,2011(5):538-549. |
| [3] | Yen H W;Huang M;Scott C P et al.Interactions between deformation-induced defects and carbides in a vanadium-containing TWIP steel[J].Scripta Materialia,2012,66:1018. |
| [4] | Bouaziz O;Guelton N .Modelling of TWIP effect on work-hardening[J].Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing,2001,319-321:246-249. |
| [5] | Bouaziz O;Allain S;Scott C .Effect of grain and twin boundaries on the hardening mechanisms of twinning-induced plasticity steels[J].Scripta Materialia,2008,58:484. |
| [6] | Orowan E;Martin JW.Precipitation Hardening[M].Oxford:Pergamon Press,1968 |
| [7] | Estrin Y;Meching H .A unified phenomenological description of work hardening and creep based on one-parameter models[J].ACTA MATERIALIA,1984,32:57. |
| [8] | Fullman R L .Measurement of Particle Sizes in Opaque Bodies[J].Transactions of the AIME,1953,197:447. |
| [9] | Mahajan S;Chin G Y .Formation of deformation twins in f.c.c.crystals[J].ACTA METALLURGICA,1973,21:1353. |
| [10] | Steinmetz DR;J(a)pel T;Wietbrock B et al.Revealing the strain-hardening behavior of twinning-induced plasticity steels:Theory,simulations,experiments[J].ACTA MATERIALIA,2013,61:494. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%