Cascading phase transformations in situ for the simulated coarse-grained heat-affected zone of P92 heat-resistant steel

被引：4
|
作者：
Liu, Haoxin [1 ,2 ]
Zhong, Ming [1 ,2 ]
Shen, Yang [1 ,2 ]
Wang, Zhanjun [1 ,2 ]
Basu, Somnath [3 ]
Wang, Cong [1 ,2 ]
机构：
[1] Northeastern Univ, Key Lab Ecol Met Multimet Mineral, Minist Educ, Shenyang 110819, Peoples R China
[2] Northeastern Univ, Sch Met, Shenyang 110819, Peoples R China
[3] Indian Inst Technol, Dept Met Engn & Mat Sci, Bombay, India
来源：
MATERIALS CHARACTERIZATION | 2023年 / 200卷
基金：
中国国家自然科学基金;
关键词：
Phase transformation; Coarse -grained heat -affected zone; Heat -resistant steel; Confocal scanning laser microscope; DELTA-FERRITE; LAVES PHASE; MICROSTRUCTURE; EVOLUTION; GROWTH; NUCLEATION; TOUGHNESS; BOUNDARY; STRENGTH; KINETICS;
D O I：
10.1016/j.matchar.2023.112864
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Salient phase transformations in the coarse-grained heat-affected zone of P92 heat-resistant steel have been documented by confocal scanning laser microscope. It has been revealed that consecutive transformations (delta -> gamma -> martensite) take place, and the final microstructure is composed of transformed martensites with retained delta-ferrites. It is further demonstrated that martensite laths grow at a wide rate spectrum ranging from 86 to 354 mu m/s. The fast cooling rate may not allow complete transformation of delta-ferrite to gamma-austenite as the equilibrium condition is far from attained.
引用
收藏
页数：6
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