Cold Cracking Sensitivity of a Newly Developed 9Cr2WVTa Steel

CORC > 金属研究所 > 中国科学院金属研究所

	Cold Cracking Sensitivity of a Newly Developed 9Cr2WVTa Steel
	Wang, Jian ; Lu, Shanping ; Li, Yongkui ; Hu, Qingxian ; Rong, Lijian ; Li, Dianzhong
刊名	JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
	2017
卷号	26 期号:1 页码:258-267
关键词	cold cracking diffusible hydrogen implant test modeling and simulation steel Y-groove cracking test
ISSN号	1059-9495
通讯作者	Lu, SP (reprint author), Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China. ; Lu, SP (reprint author), Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China.
中文摘要	Cold cracking susceptibility of the newly developed 9Cr2WVTa steel plate welded with the corresponding gas tungsten arc welding wire has been evaluated using the implant test and the Y-groove cracking test. Measurement of diffusible hydrogen content shows that the welding wire is ultra-low welding consumables (0.40 mL/100 g). Results of the implant test show that the fracture critical stress without pre-heating is only 300 MPa and increases up to the yield strength with pre-heating to 150 A degrees C. The fracture critical stress under high heat input decreases to 250 MPa owing to the formation of quenched microstructure. Fractographies show ductile dimple fracture under higher loads and quasi-cleavage fracture under lower loads. Results of Y-groove cracking tests show that the minimum pre-heating temperature is 150 A degrees C and the maximum transverse residual stress is located at the root of the weld metal. Therefore, the heat input should be chosen in a proper range and the pre-heating temperature is no less than 150 A degrees C.
学科主题	Materials Science, Multidisciplinary
收录类别	SCI
资助信息	National Natural Science Foundation of China [91226204]; Chinese Academy of Science [XDA03010304]
语种	英语
公开日期	2017-08-17
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/78371]
专题	金属研究所_中国科学院金属研究所
推荐引用方式 GB/T 7714	Wang, Jian,Lu, Shanping,Li, Yongkui,et al. Cold Cracking Sensitivity of a Newly Developed 9Cr2WVTa Steel[J]. JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE,2017,26(1):258-267.
APA	Wang, Jian,Lu, Shanping,Li, Yongkui,Hu, Qingxian,Rong, Lijian,&Li, Dianzhong.(2017).Cold Cracking Sensitivity of a Newly Developed 9Cr2WVTa Steel.JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE,26(1),258-267.
MLA	Wang, Jian,et al."Cold Cracking Sensitivity of a Newly Developed 9Cr2WVTa Steel".JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE 26.1(2017):258-267.