热处理对热丝激光增材制造17-4PH不锈钢组织性能的影响

doi:10.11896/cldb.24080123

Abstract
Figure/Table
References
Related Citation (15)

Download:

Full Text ( PDF ) (64827KB)
Export: BibTeX | EndNote (RIS)

Abstract The high temperature gradients and interlayer cyclic heating effects inherent in the laser additive manufacturing (LAM) process result in significant anisotropy in both grain growth and mechanical properties of the deposited material. Consequently, it is imperative to employ heat treatment to refine the microstructure and tailor the mechanical properties of LAM-fabricated components. The microstructure, phase composition, hardness and tensile properties of 17-4PH stainless steel made by hot wire laser additive after heat treatment were analyzed in this work. The results showed that 17-4PH stainless steel original state organization for bulky columnar lath martensite and a small amount of intergranular fine cellular austenitic. After heat treatment with H900, the martensite grains are refined, and the anisotropy of grain growth is weakened, and fine carbonized precipitates are precipitated. After H1025 heat treatment, the martensite grains become coarser, and fine reverse-transformed austenite is distributed along grain boundaries and within grains. After heat treatment, the mechanical properties of LAM sample are better than those of wrought sample. The tensile strength of LAM 17-4PH stainless steel increases from 1 108 MPa to 1 506 MPa under the condition of H900. The tensile strength and yield strength of LAM 17-4PH stainless steel are 11% and 15% higher than those of wrought stainless steel, respectively, and the hardness reaches to 448HV. The precipitation of carbides in martensitic matrix and the strengthening effect of grain refinement improve the strength synergically, and the retrograde austenite increases the plastic toughness of 17-4PH stainless steel.

Key words： 17-4PH stainless steel laser additive manufacturing heat treatment tense property microstructure

Published: 10 August 2025 Online: 2025-08-13

CLC number:

TG142.1

	Service
	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	ZHANG Pengde
	LI Guang
	LIU Yupeng
	SHI Yu

Cite this article:

ZHANG Pengde,LI Guang,LIU Yupeng, et al. The Influence of Heat Treatment on Microstructure and Properties of 17-4PH Stainless Steel Fabricated of Hot Wire Laser Additive Manufacturing[J]. Materials Reports, 2025, 39(15): 24080123-7.

URL:

https://www.mater-rep.com/EN/10.11896/cldb.24080123 OR https://www.mater-rep.com/EN/Y2025/V39/I15/24080123

1 Zhang Z, Kong F, Kovacevie R. Optics and Lasers in Engineering, 2020, 128, 105998.
2 Chen C, Lian G, Jiang J, et al. Journal of Manufacturing Processes, 2018, 36, 621.
3 Chen X, Yao M, Kong F, et al. Journal of Manufacturing Processes, 2023, 87, 183.
4 Ozsoy A, Aydogan E, Dericioglu A F. Materials Science and Enginee-ring: A, 2022, 836, 142574.
5 Sheng Z, Bonvalet R M, Zhou T, et al. Journal of Materials Science, 2021, 56, 2650.
6 Bartolomeu F, Buciumeanu M, Pinto E, et al. Additive Manufacturing, 2017, 16, 81.
7 Hooper Paul A. Additive Manufacturing, 2018, 22, 548.
8 Sun S, Brandt M, Easton M. Laser Additive Manufacturing, 2017, pp.55.
9 Haghdadi N, Laleh M, Moyle M, et al. Journal of Materials Science, 2021, 56, 64.
10 Gibson I, Rosen D W, Stucker B, et al. Additive manufacturing techno-logies(third edition). Switzerland:Springer, 2021.
11 Sun Y, Hebert R J, Aindow M. Materials & Design, 2018, 156, 429.
12 Nezhadfar P D, Rakish S, Phan N, et al. International Journal of Fatigue, 2019, 124, 188.
13 Facchini L, Vicente J N, Lonardelli I, et al. Advanced Engineering Materials, 2010, 12(3), 184.
14 Kurdjumov G V, Khachaturyan A G. Metallurgical Transactions, 1972, 3, 1069.
15 Eskandari H, Lashgari H R, Ye L, et al. Materials Today Communications, 2022, 30, 103075.
16 Sun Y, Hebert R J, Aindow M. Additive Manufacturing, 2020, 35, 101302.
17 Li K, Zhan J B, Yang T B, et al. Additive Manufacturing, 2022, 52, 102672.
18 Zhou T, Tao Z, Yildiz A B, et al. Additive Manufacturing, 2022, 58, 103047.
19 Li P, Cai Q Z, Wei B K, et al. Journal of Iron and Steel Research, International, 2006, 13(5), 73.
20 Su G X, Shi Y, Li G, et al. Journal of Manufacturing Processes, 2023, 102, 622.
21 Zhao S B, Xu S, Huang Y M, et al. Journal of Materials Processing Technology, 2021, 298, 117273.
22 ASTM International. Standard specification for hot-rolled and cold-finished age-hardening stainless steel bars and shapes:ASTM A564/A564M-13. West Conshohocken, US, 2013.
23 Hanawa T, Asami K, Asaoka K. Journal of Biomedical Materials Research, 1998, 40(4), 530.
24 Lyu Z, Sato Y S, Li S, et al. Additive Manufacturing, 2024, 80, 103954.
25 Palanisamy D, Senthil P, Senthilkumar V. Archives of Civil and Mechanical Engineering, 2016, 16, 53.
26 Bajguirani H H. Materials Science and Engineering:A, 2002, 338, 142.