Effect of Energy Density on the Defects, Microstructure, and Mechanical Properties of Selective-Laser-Melted 24CrNiMo Low-Alloy Steel

Wang, F. Z.; Zhang, C. H.; Cui, X.; Zhou, Feng; Zhang, S.; Chen, H. T.; Chen, J.

doi:10.1007/s11665-021-06500-x

Cited by 11 publications

(3 citation statements)

References 56 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The strength–plasticity product of the as‐deposited alloy steel was 18.23 GPa%. [ 33 ] In this experiment, the strength–plasticity products of DQ1, DQ2, and DQ3 samples were 25.25, 17.10, and 16.18 GPa%, respectively. It can be seen that only the strength–plasticity product of DQ1 sample was higher than that of as‐deposited alloy steel, but the reason for the increase of strength–plasticity product was that the elongation was greatly improved at the expense of tensile strength.…”

Section: Resultsmentioning

confidence: 90%

“…Figure 4 shows X‐ray diffraction (XRD) patterns of different quenching samples. It can be seen from the figure that the phase composition of all quenched samples did not change significantly compared with the as‐deposited samples, [ 32,33 ] and all of them were α‐Fe phases with body‐centered cubic (BCC) structure (JCPDS Card No. 06‐0696).…”

Section: Resultsmentioning

confidence: 99%

“…Figure 8 shows the microhardness distribution map and average microhardness histogram of different quenching samples. The results showed that compared with the as‐deposited alloy steel (458.96 HV 0.2 ), [ 33 ] the microhardness of DQ1 sample (397 HV 0.2 ) was significantly decreased, while that of DQ2 sample (474 HV 0.2 ) and DQ3 sample (585 HV 0.2 ) was significantly increased. The reason why the microhardness of DQ1 sample was lower than that of the as‐deposited sample was the formation of a large number of “soft” phase ferrite.…”

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

Effects of Dual‐Phase Region Quenching Treatment on Microstructure and Mechanical Properties of 24CrNiMo Low‐Alloy Steel Prepared by Selective Laser Melting

Cui,

Wang,

Wang

et al. 2023

steel research int.

View full text Add to dashboard Cite

In this paper, 24CrNiMo low alloy steel was successfully prepared using selective laser melting (SLM) technology. Effects of dual phase region quenching treatment on microstructure and mechanical properties of SLM 24CrNiMo low alloy steel were analyzed. The results showed that after three kinds of dual phase region quenching treatment, different martensite ‐ ferrite dual phase microstructure of the as‐quenched alloy steel was obtained. In the range of austenitizing temperature from 760°C to 820°C, the content and size of the ferrite decreased, on the contrary, the content and size of the martensite increased. Furthermore, with the austenitizing temperature increasing, the morphology of the ferrite gradually changed from acicular ferrite + polygonal ferrite to acicular ferrite, while the lath characteristics of the martensite became more and more obvious. For EBSD results, with increasing the quenching temperature, the crystallographic morphology gradually changed from columnar grains to equiaxed grains, meanwhile, the extreme value of texture strength and the average size of grains were both decreased. When the austenitizing temperature was 820°C, the microhardness and tensile strength of the as‐quenched alloy steel were much higher than that of the as‐deposited alloy steel.This article is protected by copyright. All rights reserved.

show abstract

Section: Resultsmentioning

confidence: 90%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation