杨超,闵永安,欧阳剑雄

• 1:上海大学材料科学与工程学院

摘要(Abstract)：

运用DIL805A热膨胀相变仪对热轧态和退火态22CrMo齿轮钢试样的淬火膨胀性能进行测定,研究了带状组织对钢各向异性的影响,通过光学显微镜、扫描电子显微镜观察并分析显微组织。结果表明,含有带状组织的22CrMo齿轮钢不同方向试样的淬火变形量呈现明显各向异性,垂直于轧制带的膨胀量明显大于轧制带方向,不同带状组织的合金元素富集程度不同,导致相变产生的塑性应变制约相邻带的膨胀变形。热轧态22CrMo齿轮钢淬火膨胀无规律性;而退火钢的淬火膨胀特性有明显规律,奥氏体化保温时间越长,碳化物溶解充分,淬透性越高。

关键词(KeyWords)： 带状组织;齿轮钢;各向异性

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 杨超,闵永安,欧阳剑雄

DOI: 10.13289/j.issn.1009-6264.2014.08.015

参考文献(References)：

• [1]孔祥华,孙瑞虹,唐晋,等.两相区冷速对齿轮钢20CrMnTi带状组织的影响[J].材料热处理学报,2012,33(4):1-4.KONG Xiang-hua,SUN Rui-hong,TANG Jin,et al.Influence of cooling speed in two-phase region on banded structure of 20CrMnTi steel[J].Transactions of Materials and Heat Treatment,2012,33(4):1-4.
• [2]刘云旭.低碳合金钢中带状组织的成因、危害和消除[J].金属热处理,2000,25(12):1-3.LIU Yun-xu.Reason of formation,harmful effect and removal of band structure in low carbon alloy steel[J].Heat Treatment of Metals,2000,25(12):1-3.
• [3]Offerman S E,Dijk N H,Rekveldt M T,et al.Ferrite/pearlite band formation in hot rolled medium carbon steel[J].Materials Science and Technology,2002,18(3):297-303.
• [4]Shanmugan P,Pathak S D.Some studies on the impact behavior of banded microalloyed steel[J].Engineering Fracture Mechanics,1996,53(6):991-1002.
• [5]García N V,Gonzalo O,Quintana I,et al.Residual stresses and structural changes generated at different steps of the manufacturing of gears:Effect of banded structures[J].Materials Science and Engineering A,2011,528(15):5146-5157.
• [6]Javad M,Dongchul C,Bruno C.Dilatometric analysis of anisotropic dimensional changes in a 16Pct Cr stainless steel with a planar baned structure[J].Metallurgical and Materials Transactions A,2010,41(6):1429-1436.
• [7]Jaramillo R A,Lusk M T,Mataya M C.Dimensional anisotropy during phase transformations in a chemically banded 5140 steel[J].PartΙ:experimental investigation.Acta Materialia,2004,52(4):851-858.
• [8]Cho Y G,Suh D W,Lee J K,et al.Finite-element analysis of dimensional non-isotropy during phase transformation in microstructural banded steel[J].Scripta Materialia,2011,65(7):569-572.
• [9]Jaramillo R A,Lusk M T,Mataya M C.Dimensional anisotropy during phase transformations in a chemically banded 5140 steel[J].Part II:modeling.Acta Materialia,2004,52(4):859-867.
• [10]Kop T A,Sietsma J,Zwaag S.Anisotropic dilatation behavior during transformation of hot rolled steels showing baned structure[J].Materials Science and Technology,2001,17(12):1569-1574.

文章评论(Comment)：