高强韧低碳中锰钢的弯曲疲劳性能

doi:10.12068/j.issn.1005-3026.2018.12.008

东北大学学报:自然科学版 ›› 2018, Vol. 39 ›› Issue (12): 1712-1716.DOI: 10.12068/j.issn.1005-3026.2018.12.008

高强韧低碳中锰钢的弯曲疲劳性能

齐祥羽，董营，胡军，杜林秀

(东北大学轧制技术及连轧自动化国家重点实验室，辽宁沈阳110819)

收稿日期:2017-09-12 修回日期:2017-09-12 出版日期:2018-12-15 发布日期:2018-12-19
通讯作者: 齐祥羽
作者简介:齐祥羽(1988-)，男，吉林白山人，东北大学博士研究生；杜林秀(1962-)，男，辽宁本溪人，东北大学教授，博士生导师.冯明杰(1971-)，男，河南禹州人，东北大学副教授; 王恩刚(1962-)，男，辽宁沈阳人，东北大学教授，博士生导师.
基金资助:
国家自然科学基金资助项目(51171041).国家高技术研究发展计划重大项目(2015AA03A501).

Bending Fatigue Property of Low-C Medium-Mn Steel with High Strength and Toughness

QI Xiang-yu， DONG Ying， HU Jun， DU Lin-xiu

State Key Laboratory of Rolling and Automation， Northeastern University， Shenyang 110819， China.

Received:2017-09-12 Revised:2017-09-12 Online:2018-12-15 Published:2018-12-19
Contact: DU Lin-xiu
About author:-
Supported by:
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摘要/Abstract

摘要： 利用GPS-100高频疲劳试验机，研究了高强韧低碳中锰钢的三点弯曲疲劳性能，绘制出S-N曲线并分析了疲劳断口特征，探讨了相变诱导塑性(TRIP)效应对试验钢疲劳性能的影响机理.结果表明:试验钢的条件疲劳极限为1006MPa，疲劳比为1.20;试验钢的疲劳裂纹源萌生于试样下表面靠近棱角的位置，疲劳裂纹扩展区存在大量的二次裂纹可有效降低主裂纹的扩展速率，提高试验钢的疲劳强度；瞬断区包含等轴韧窝和拉长的韧窝，是典型的韧性断裂.疲劳裂纹前沿微小塑性变形区内的残余奥氏体发生TRIP效应，吸收大量应变能，钝化裂纹，减缓裂纹的扩展速率，是试验钢疲劳性能优异的主要原因.

关键词: 中锰钢, 三点弯曲疲劳, 疲劳强度, 疲劳比, S-N曲线, TRIP效应

Abstract: The three-point-bending fatigue property of low-C medium-Mn steel was studied by GPS-100 fatigue testing machine， where the S-N curve was plotted and the characteristics of fatigue fracture surface were analyzed. The effect of transformation induced plasiticity(TRIP)on fatigue property of the steel was also investigated. The results showed that the fatigue strength of the tested sample was about 1006MPa and the fatigue ratio was 1.20. The fatigue crack was originated from the corners in the lower surface of the sample. There were a large number of secondary cracks in the crack propagation zone， which could reduce the propagation rate effectively and improve fatigue strength of the steel. The fracture type was ductile for the axial dimples and elongated dimples were observed in the transient fracture zone. Furthermore， the excellent fatigue property of this steel was mainly attributed to the TRIP effect of retained austenite in the small plastic deformation zone in front of the fatigue crack， which could absorb a large amount of strain energy， blunt crack and reduce the crack propagation rate.

Key words: medium-Mn steel, three-point-bending fatigue, fatigue strength, fatigue ratio, S-N curve, TRIP effect

中图分类号:

TG115.5

齐祥羽，董营，胡军，杜林秀. 高强韧低碳中锰钢的弯曲疲劳性能[J]. 东北大学学报:自然科学版, 2018, 39(12): 1712-1716.

QI Xiang-yu， DONG Ying， HU Jun， DU Lin-xiu. Bending Fatigue Property of Low-C Medium-Mn Steel with High Strength and Toughness[J]. Journal of Northeastern University Natural Science, 2018, 39(12): 1712-1716.

参考文献

[1]刘振宇，唐帅，陈俊，等.海洋平台用钢的研发生产现状与发展趋势［J］.鞍钢技术，2005(1):1-7.(Liu Zhen-yu，Tang Shuai，Chen Jun，et al.Latest progress on development and production of steels for offshore platform and their development tendency［J］.Angang Technology，2005(1):1-7.)
[2]Liu D S，Cheng B G，Chen Y Y.Strengthening and toughening of a heavy plate steel for shipbuilding with yield strength of approximately 690MPa［J］.Metallurgical and Materials Transactions A，2013，44(1):440-455.
[3]Nakada N，Syarif J，Tsuchiyama T，et al.Improvement of strength-ductility balance by copper addition in 9%Ni steels［J］.Materials Science and Engineering:A，2004，374(1/2):137-144.
[4]Hu J，Du L X，Liu H，et al.Structure-mechanical property relationship in a low-C medium-Mn ultrahigh strength heavy plate steel with austenite-martensite submicro-laminate structure［J］.Materials Science and Engineering:A，2015，647:144-151.
[5]Lee S J，Lee S，De Cooman B C.Mn partitioning during the intercritical annealing of ultrafine-grained 6% Mn transformation-induced plasticity steel［J］.Scripta Materialia，2011，64(7):649-652.
[6]Liu H，Du L X，Hu J，et al.Interplay between reversed austenite and plastic deformation in a directly quenched and intercritically annealed 0.04 C-5Mn low-Al steel［J］.Journal of Alloys and Compounds，2017，695:2072-2082.
[7]Hu J，Du L X，Sun G S，et al.The determining role of reversed austenite in enhancing toughness of a novel ultra-low carbon medium manganese high strength steel［J］.Scripta Materialia，2015，104:87-90.
[8]Han J，Nam J H，Lee Y K.The mechanism of hydrogen embrittlement in intercritically annealed medium Mn TRIP steel ［J］.Acta Materialia，2016，113:1-10.
[9]Brownlee K A，Hodges Jr J L，Rosenblatt M.The up-and-down method with small samples［J］.Journal of the American Statistical Association，1953，48:262-277.
[10]Zhao P，Cheng C，Gao G，et al.The potential significance of microalloying with niobium in governing very high cycle fatigue behavior of bainite/martensite multiphase steels［J］.Materials Science and Engineering:A，2016，650:438-444.
[11]赵阳，陈礼清，王贵桥，等.Nb+V和V微合金化非调质钢疲劳性能［J］.机械工程学报，2010，46(16):131-135.(Zhao Yang，Chen Li-qing，Wang Gui-qiao，et al.Fatigue behaviors of Nb+V and V microalloyed forging steels ［J］.Journal of Mechanical Engineering，2010，46(16):131-135.)
[12]班丽丽.中碳Si-Mn系高强度TRIP钢高周疲劳破坏行为研究［D］.昆明:昆明理工大学，2008.(Ban Li-li.Research on high cycle fatigue fracture behaviour of medium-carbon Si-Mn high strength TRIP steel［D］.Kunming:Kunming University of Science and Technology，2008.)
[13]于燕，张小萌，刘云旭.TRIP汽车钢板的高周疲劳性能［J］.吉林大学学报(工学版)，2014，44(5):1371-1374.(Yu Yan，Zhang Xiao-meng，Liu Yun-xu.High cycle fatigue performance of TRIP automobile steel［J］.Journal of Jilin University(Engineering and Technology Edition)，2014，44(5):1371-1374.)
[14]Lan L L，Qiu C L，Zhao D W，et al.Microstructural characteristics and toughness of the simulated coarse grained heat affected zone of high strength low carbon bainitic steel［J］.Materials Science and Engineering:A，2011，529:192-200.
[15]Huo C Y，Gao H L.Strain-induced martensitic transformation in fatigue crack tip zone for a high strength steel［J］.Materials Characterization，2005，55(1):12-18.
[16]Abareshi M，Emadoddin E.Effect of retained austenite characteristics on fatigue behavior and tensile properties of transformation induced plasticity steel［J］.Materials and Design，2011，32(10):5099-5105.(上接第1711页)
[4]Manohar P A，Chandra T，Killmore C R.Continuous cooling transformation behaviour of microalloyed steels containing Ti，Nb，Mn and Mo ［J］.ISIJ International，1996，36:1486-1493.
[5]Kestenbach H J，Campos S S，Morales E V.Role of interphase precipitation in microalloyed hot strip steels ［J］.Material Science Technology，2006，22:615-626.
[6]Funakawa Y，Shiozaki T，Tomita T，et al.Development of high strength hot-rolled sheet steel consisting of ferrite and nanometer-sized carbides ［J］.ISIJ International，2004，44:1945-1951.
[7]Shimizu T.High strength steel sheets for automobile suspension and chassis use—high strength hot-rolled steel sheets with excellent press formability and durability for critical safety parts ［J］.JFE Technical Report，2004(4):25-31.
[8]Yen H W，Chen P Y，Huang C Y，et al.Interphase precipitation of nanometer-sized carbides in a titanium-molybdenum-bearing low-carbon steel［J］.Acta Materialia，2011，59:6264-6274.
[9]王国栋.新一代TMCP的实践和工业应用举例［J］.上海金属，2008，30(3):1-4.(Wang Guo-dong.Practice and industrial application for new generation TMCP ［J］.Shanghai Metals，2008，30(3):1-4.)
[10]Chen C Y，Chen S F，Chen C C，et al.Control of precipitation morphology in the novel HSLA steel ［J］.Materials Science & Engineering A，2015，634:123-133.
[11]Chen C Y.Study on the precipitation behavior of nano-sized carbide in the novel HSLA steel ［D］.Taipei:University of Taiwan，2007.

高强韧低碳中锰钢的弯曲疲劳性能

Bending Fatigue Property of Low-C Medium-Mn Steel with High Strength and Toughness

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