热处理对2 000 MPa超高强度不锈钢组织和性能的影响

doi:10.13228/j.boyuan.issn0449-749x.20160116

摘要
图/表
参考文献
相关文章 (15)

全文: PDF (0 KB) HTML (0 KB)
输出: BibTeX | EndNote (RIS)

摘要运用Thermal-calc热力学软件、光学显微镜（OM）、扫描电子显微镜(SEM)、透射电子显微镜(TEM)等手段研究了热处理工艺对一种新型的超高强度不锈钢微观组织及力学性能的影响。结果表明，经过固溶处理后钢的基体为高密度位错的板条马氏体组织；强度随着时效温度的升高而逐渐升高，在520～540 ℃时可达到2 000 MPa，且冲击吸收功在540 ℃时达到最大值37 J。此时在板条马氏体上析出大量、细小、弥散以μ相为主的第二相，同时在板条与板条界面上有块状的逆转变奥氏体生成，这是该钢具有超高强度与高韧性的主要原因。

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	杨哲

关键词 ：超高强度不锈钢, μ相, 热处理, 力学性能

Abstract：The effect of heat treatment on microstructures and mechanical property of a new type ultra-high stainless steel was investigated by means of optical microscopy(OM)， scanning electron microscopy(SEM)， transmission electron microscopy (TEM) combined with Thermal-calc software. The results showed that the matrix of tested steel after solution treatment was lath martensite with high dislocation density. The strength of tested steel gradually increased with the increase of aging temperatures. The ultimate tensile strength eventually reached above 2 000 MPa when aged at temperatures ranging from 520 to 540 ℃. The optimum impact energy with 37 J was obtained after tempering at 540 ℃. Meanwhile， an abundance of fine and dispersive precipitates precipitated in lath martensite which were mainly consisted of μ phase. Moreover， massive reversed austenite formed at the interface of martensite lath. All factors mentioned above result in the ultra-high strength and good toughness of developed steel.

收稿日期: 2016-03-24 出版日期: 2016-10-08

引用本文:

杨哲，曹睿，刘振宝，梁剑雄，胡家齐. 热处理对2 000 MPa超高强度不锈钢组织和性能的影响[J]. 钢铁, 2016, 51(10): 48-53. YANG Zhe，CAO Rui，LIU Zhen-bao，LIANG Jian-xiong，HU Jia-qi. Effect of heat treatment on mechanical property of 2 000 MPa grade ultra-high strength stainless steel. Iron and Steel, 2016, 51(10): 48-53.

链接本文:

http://www.chinamet.cn/Jweb_gt/CN/10.13228/j.boyuan.issn0449-749x.20160116 或 http://www.chinamet.cn/Jweb_gt/CN/Y2016/V51/I10/48

[1]	Kubel E. AeroMat: the Preeminent Aerospace Materials/Processes Conference[Z]. 2011: 169, 2.
[1]	Kubel E. AeroMat: the Preeminent Aerospace Materials/Processes Conference[Z]. 2011: 169, 2.
[2]	Garrison W M. Ultrahigh-strength steels for aerospace applications[J]. Jom the Journal of the Minerals Metals & Materials Society. 1990, 42(5): 20-24.
[2]	Garrison W M. Ultrahigh-strength steels for aerospace applications[J]. Jom the Journal of the Minerals Metals & Materials Society. 1990, 42(5): 20-24.
[3]	梁剑雄，刘振宝，杨志勇. 高强不锈钢的发展与应用技术[J]. 宇航材料工艺. 2013, 43(3): 1-11.LIANG Jianxiong, Liu Zhenbao, YANG Zhiyong [J] Aerospace Materials & Technology, 2013, (03): 1-11.
[3]	梁剑雄，刘振宝，杨志勇. 高强不锈钢的发展与应用技术[J]. 宇航材料工艺. 2013, 43(3): 1-11.LIANG Jianxiong, Liu Zhenbao, YANG Zhiyong [J] Aerospace Materials & Technology, 2013, (03): 1-11.
[4]	刘振宝，杨志勇，雍歧龙，等. 1900MPa级超高强度不锈钢的研制[J]. 机械工程材料. 2008, 32(3).LIU Zhenbao，YANG Zhiyong，YONG Qilong，et al. A 1900MPa Grade Ultra-high Strength Stainless Steel [J]. Materials for Mechanical Engineering, 2008, 32(3).
[4]	刘振宝，杨志勇，雍歧龙，等. 1900MPa级超高强度不锈钢的研制[J]. 机械工程材料. 2008, 32(3).LIU Zhenbao，YANG Zhiyong，YONG Qilong，et al. A 1900MPa Grade Ultra-high Strength Stainless Steel [J]. Materials for Mechanical Engineering, 2008, 32(3).
[5]	Singh B N, Gupta K P. Laves and μ phases in the Nb-Fe-Si and Nb-Co-Si systems[J]. Metallurgical\s&\smaterials Transactions B. 1972, 3(6): 1427-1431.
[5]	Singh B N, Gupta K P. Laves and μ phases in the Nb-Fe-Si and Nb-Co-Si systems[J]. Metallurgical\s&\smaterials Transactions B. 1972, 3(6): 1427-1431.
[6]	WANG D, ZHANG J, LOU L H. On the role of μ phase during high temperature creep of a second generation directionally solidified superalloy[J]. Materials Science & Engineering A. 2010, 527(20): 5161-5166.
[6]	WANG D, ZHANG J, LOU L H. On the role of μ phase during high temperature creep of a second generation directionally solidified superalloy[J]. Materials Science & Engineering A. 2010, 527(20): 5161-5166.
[7]	陈国良，谢锡善，倪克铨，等. 铁基高温合金中μ相和σ相引起的晶界脆化[J]. 金属学报. 1981(1): 1-114.CHEN Guoliang，XIE Xishan，NI Kequan，et al. Boudry Embrittlement caused by μ phase and σ phase in the iron-base superalloy [J]. Acta Metalluergica Sinica, 1981, (1): 1-114.
[7]	陈国良，谢锡善，倪克铨，等. 铁基高温合金中μ相和σ相引起的晶界脆化[J]. 金属学报. 1981(1): 1-114.CHEN Guoliang，XIE Xishan，NI Kequan，et al. Boudry Embrittlement caused by μ phase and σ phase in the iron-base superalloy [J]. Acta Metalluergica Sinica, 1981, (1): 1-114.
[8]	GAO G, ZHANG H, GUI X, et al. Enhanced ductility and toughness in an ultrahigh-strength Mn–Si–Cr–C steel: The great potential of ultrafine filmy retained austenite[J]. Acta Materialia. 2014, 76: 425-433.
[8]	GAO G, ZHANG H, GUI X, et al. Enhanced ductility and toughness in an ultrahigh-strength Mn–Si–Cr–C steel: The great potential of ultrafine filmy retained austenite[J]. Acta Materialia. 2014, 76: 425-433.
[9]	Lee T H, Lee Y J, Joo S H, et al. Intergranular M 23 C 6 Carbide Precipitation Behavior and Its Effect on Mechanical Properties of Inconel 690 Tubes[J]. Metallurgical & Materials Transactions A. 2015, 46(9): 4020-4026.
[9]	Lee T H, Lee Y J, Joo S H, et al. Intergranular M 23 C 6 Carbide Precipitation Behavior and Its Effect on Mechanical Properties of Inconel 690 Tubes[J]. Metallurgical & Materials Transactions A. 2015, 46(9): 4020-4026.
[10]	GUO Z, SONG Z, ZHENG W, et al. M_ (23) C_6 Precipitation in 00Cr25Ni35AlTi by Aging Treatment[J]. Journal of Iron and Steel Research. 2009, 4: 8.
[10]	GUO Z, SONG Z, ZHENG W, et al. M_ (23) C_6 Precipitation in 00Cr25Ni35AlTi by Aging Treatment[J]. Journal of Iron and Steel Research. 2009, 4: 8.
[11]	Zieliński A M. MECHANICAL PROPERTIES OF VM12 STEEL AFTER 30 000 hrs OF AGEING AT 600? C TEMPERATURE[J]. Archives of Metallurgy & Materials. 2014, 54(9).
[11]	Zieliński A M. MECHANICAL PROPERTIES OF VM12 STEEL AFTER 30 000 hrs OF AGEING AT 600? C TEMPERATURE[J]. Archives of Metallurgy & Materials. 2014, 54(9).