S31042耐热钢650 ℃持久的析出相对持久塑性的影响

doi:10.13228/j.boyuan.issn0449-749x.20140183

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 S31042钢是一种重要的超临界和超超临界锅炉用钢。针对该钢持久塑性差的问题，采用扫描电镜和透射电镜研究了S31042钢在650 ℃持久前后的微观组织，主要探讨了析出相对持久塑性的影响。结果表明：持久1 608 h，S31042钢的塑性快速下降。而后塑性缓慢下降，并逐渐趋于稳定。S31042钢持久过程中主要的析出相为二次NbCrN和M23C6，长期持久会导致少量σ相和Cr3Ni2SiC的析出。S31042钢持久塑性显著下降的主要原因是由于M23C6在晶界上的析出。此外，链状M23C6、立方形M23C6以及未溶的NbCrN对S31042钢的持久塑性也有害。

	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
	杨亚红
	朱丽慧
	王起江
	朱长春

关键词 ： S31042耐热钢, 高温持久, 组织, 持久塑性

Abstract：S31042 steel is an important heat-resistant steel used for super critical and ultra super critical pressure boilers. In order to analyze the poor creep plasticity of S31042 steel, the microstructure of S31042 steel before and after crept at 650 ℃ was studied by SEM and TEM, and the effect of the precipitates on creep plasticity was discussed. The results show that the creep plasticity dropped rapidly after crept for 1608 h. Thereafter, the plasticity declined slowly with the increase of the creep time. Finally, it tended to be stable. The main precipitates were secondary NbCrN and M23C6 during creep. Long-term creep also resulted in the precipitation of a few Cr3Ni2SiC and σ phase. The precipitation of M23C6 at the grain boundaries resulted in the dramatic decrease in the creep plasticity of S31042 steel. Chain-like M23C6, cuboids M23C6 and undissolved NbCrN were also detrimental to the creep plasticity of S31042 steel.

Key words： S31042 heat- resistant steel creep rupture microstructure creep plasticity

收稿日期: 2014-03-28 出版日期: 2015-01-12

PACS:

TG115

引用本文:

杨亚红，朱丽慧，王起江，朱长春. S31042耐热钢650 ℃持久的析出相对持久塑性的影响[J]. 钢铁, 2015, 50(1): 55-60. YANG Ya-hong， ZHU Li-hui， WANG Qi-jiang， ZHU Chang-chun. Effect of precipitates on the creep plasticity of S31042 heat-resistant steel crept at 650 ℃. Iron and Steel, 2015, 50(1): 55-60.

链接本文:

http://www.chinamet.cn/Jweb_gt/CN/10.13228/j.boyuan.issn0449-749x.20140183 或 http://www.chinamet.cn/Jweb_gt/CN/Y2015/V50/I1/55

[1]	李太江, 刘福广, 陈伟武, 等.钢焊接接头高温时效后的显微组织和力学性能[J].金属热处理, 2012, 37(8):16-20
[1]	李太江, 刘福广, 陈伟武, 等.钢焊接接头高温时效后的显微组织和力学性能[J].金属热处理, 2012, 37(8):16-20
[2]	Okada H, Igarashi M, Yamamoto S, et al.Long-term service experience with advanced austenitic alloys in eddystone power station[C]. ASME, 2007.
[2]	Okada H, Igarashi M, Yamamoto S, et al.Long-term service experience with advanced austenitic alloys in eddystone power station[C]. ASME, 2007.
[3]	Iseda A, Okada H, Semba H, et al.Long term creep properties and microstructure of SUPER304H,TP347HFG and S31042 for A-USC boilers[J].Energy Materials: Materials Science and Engineering for Energy Systems, 2007, 2(4):199-206
[3]	Iseda A, Okada H, Semba H, et al.Long term creep properties and microstructure of SUPER304H,TP347HFG and S31042 for A-USC boilers[J].Energy Materials: Materials Science and Engineering for Energy Systems, 2007, 2(4):199-206
[4]	方园园, 赵杰, 李晓娜.钢高温时效过程中的析出相[J].金属学报, 2010, 46(7):844-849
[4]	方园园, 赵杰, 李晓娜.钢高温时效过程中的析出相[J].金属学报, 2010, 46(7):844-849
[5]	Chi C, Yu H, Xie X.Advanced Austenitic Heat-Resistant Steels for Ultra-Super-Critical (USC) Fossil Power Plants [J]. Alloy Steel-Properties and Use, 2011: 978-953.
[5]	Chi C, Yu H, Xie X.Advanced Austenitic Heat-Resistant Steels for Ultra-Super-Critical (USC) Fossil Power Plants [J]. Alloy Steel-Properties and Use, 2011: 978-953.
[6]	黄竹平, 胡正飞, 王起江, 等.耐热钢 ℃ 持久性能与断裂行为[J].材料热处理学报, 2013, 34(11):61-66
[6]	黄竹平, 胡正飞, 王起江, 等.耐热钢 ℃ 持久性能与断裂行为[J].材料热处理学报, 2013, 34(11):61-66
[7]	Peng B, Zhang H, Hong J, et al.Effect of aging on the impact toughness of 25Cr–20Ni–Nb–N steel[J].Materials Science and Engineering: A, 2010, 527(7):1957-1961
[7]	Peng B, Zhang H, Hong J, et al.Effect of aging on the impact toughness of 25Cr–20Ni–Nb–N steel[J].Materials Science and Engineering: A, 2010, 527(7):1957-1961
[8]	WANG J, LIU Z, BAO H, et al.Effect of Ageing at 700° C on Microstructure and Mechanical Properties of S31042 Heat Resistant Steel[J].Journal of Iron and Steel Research, International, 2013, 20(4):54-58
[8]	WANG J, LIU Z, BAO H, et al.Effect of Ageing at 700° C on Microstructure and Mechanical Properties of S31042 Heat Resistant Steel[J].Journal of Iron and Steel Research, International, 2013, 20(4):54-58
[9]	雍岐龙.钢铁材料中的第二相[M]. 北京:冶金工业出版社, 2006.
[9]	雍岐龙.钢铁材料中的第二相[M]. 北京:冶金工业出版社, 2006.
[10]	Goji? M, Nagode A, Kosec B, et al.Failure of steel pipes for hot air supply[J].Engineering Failure Analysis, 2011, 18(8):2330-2335
[10]	Goji? M, Nagode A, Kosec B, et al.Failure of steel pipes for hot air supply[J].Engineering Failure Analysis, 2011, 18(8):2330-2335
[11]	王敬忠, 刘正东, 程世长, 等.固溶态钢高温塑性波动大的原因分析[J].钢铁, 2012, 47(1):60-64
[11]	王敬忠, 刘正东, 程世长, 等.固溶态钢高温塑性波动大的原因分析[J].钢铁, 2012, 47(1):60-64
[12]	Hong H U, Rho B S, Nam S W.Correlation of the M23C6 precipitation morphology with grain boundary characteristics in austenitic stainless steel[J].Materials Science and Engineering: A, 2001, 318(1):285-292
[12]	Hong H U, Rho B S, Nam S W.Correlation of the M23C6 precipitation morphology with grain boundary characteristics in austenitic stainless steel[J].Materials Science and Engineering: A, 2001, 318(1):285-292
[13]	Sourmail T.Precipitation in creep resistant austenitic stainless steels[J].Materials science and technology, 2001, 17(1):1-14
[13]	Sourmail T.Precipitation in creep resistant austenitic stainless steels[J].Materials science and technology, 2001, 17(1):1-14