利用Gleeble-1500热模拟试验机、光学显微镜、显微硬度计和纳米力学探针仪研究了温度、变形量和变形道次对316LN不锈钢组织和性能的影响.结果表明,试样3个变形区域的组织和显微硬度差距很大,难变形区变化最小,心部区域变化最大.统计分析不同试样的心部区域可知,大的变形量能得到细的晶粒和较高的显微硬度;高的变形温度能使材料充分再结晶;多道次变形后,试样的晶粒均匀性和圆整性得到改善;变形量为0.6时,1000℃下大变形后材料的纳米硬度和弹性模量高于原始材料,1200℃下则相反.
参考文献
| [1] | Samantaray, D.;Mandal, S.;Phaniraj, C.;Bhaduri, A.K. .Flow behavior and microstructural evolution during hot deformation of AISI Type 316 L(N) austenitic stainless steel[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2011(29/30):8565-8572. |
| [2] | Wenhui Z;Shuhua S;Deli Z et al.Hot deformation behavior of a Nb-containing 316LN stainless steel[J].Materials and Design,2011,32(8-9):4173. |
| [3] | 宋仁伯,项建英,侯东坡.316L不锈钢冷变形加工硬化机制及组织特征[J].北京科技大学学报,2013(01):55-60. |
| [4] | Xu S;Wu X Q et al.Crack initiation mechanisms for low cycle fatigue of type 316Ti stainless steel in high temperature water[J].MATERIALS SCIENCE & ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2008,490(1-2):16. |
| [5] | Ceschinia L;Minak G .Fatigue behaviour of low temperature carburised AISI 316L austenitic stainless steel[J].Surface & Coatings Technology,2008(9):1778-1784. |
| [6] | 卢华兴.AP1000核电站主管道国产化研制进展[J].上海金属,2010(04):29-32. |
| [7] | Zhang, X.;Zhang, Y.;Li, Y.;Liu, J..Cracking initiation mechanism of 316LN stainless steel in the process of the hot deformation[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2013:301-306. |
| [8] | 宋仁伯,项建英,刘良元,任培东,侯东坡.316L不锈钢的热变形抗力模型[J].机械工程材料,2010(06):85-88. |
| [9] | 李波,潘清林,张志野,李晨,尹志民.含钪Al-Zn-Mg合金的热变形行为和显微组织[J].材料工程,2013(11):6-11. |
| [10] | 魏猛 .316LN不锈钢再结晶及热加工研究[D].昆明:昆明理工大学,2012. |
| [11] | 秦雪妮,潘大刚,宋洪伟,吕维洁.2205双相不锈钢高温变形行为及微观组织的研究[J].热加工工艺,2012(10):96-99,102. |
| [12] | 王佳夫,刘丽丽,花福安,李建平,王国栋.2507超级双相不锈钢的热变形行为[J].特殊钢,2011(06):50-52. |
| [13] | Fan G W;Liu J;Han P D et al.Hot ductility and microstructure in casted 2205 duplex stainless steels[J].MATERIALS SCIENCE & ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2009,515(1-2):108. |
| [14] | 张泰华,杨业敏.纳米硬度技术的发展和应用[J].力学进展,2002(03):349-364. |
| [15] | 郎风超,邢永明,朱静.应用纳米压痕技术研究表面纳米化后316L不锈钢力学性能[J].工程力学,2008(10):66-71. |
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%