Relationship between Amount of Retained Austenite and Mechanical Properties in Martensitic Precipitation Hardening Stainless Steel

17-4PH precipitation-hardening martensite stainless steel is an important commercially available stainless steel. And the mechanical properties of this steel are very sensitive to quenching and aging process. In this paper, the effects of aging process on mechanical properties of this steel were investigated. The results show that the microstructure of this steel consists of quenched martensite, tempered martensite and precipitates. With the increase of the aging temperature, the strength decreases and the toughness increase. And the fracture mode of this steel transforms brittle fracture into toughness fracture.

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Influence of Retained Austenite on the Mechanical Properties of Low Carbon Martensitic Stainless Steel Castings

ISIJ International ◽

10.2355/isijinternational.51.471 ◽

2011 ◽

Vol 51 (3) ◽

pp. 471-475 ◽

Cited By ~ 17

Author(s):

Behnam Akhavan Tabatabae ◽

Fakhreddin Ashrafizadeh ◽

Ali Morad Hassanli

Keyword(s):

Mechanical Properties ◽

Stainless Steel ◽

Retained Austenite ◽

Martensitic Stainless Steel ◽

Low Carbon ◽

Steel Castings

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Nano-precipitates evolution and their effects on mechanical properties of 17-4 precipitation-hardening stainless steel

Acta Materialia ◽

10.1016/j.actamat.2018.06.031 ◽

2018 ◽

Vol 156 ◽

pp. 158-171 ◽

Cited By ~ 20

Author(s):

Zemin Wang ◽

Hui Li ◽

Qin Shen ◽

Wenqing Liu ◽

Zhanyong Wang

Keyword(s):

Mechanical Properties ◽

Stainless Steel ◽

Precipitation Hardening

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Selective laser melting and heat treatment of precipitation hardening stainless steel with a refined microstructure and excellent mechanical properties

Scripta Materialia ◽

10.1016/j.scriptamat.2019.10.040 ◽

2020 ◽

Vol 178 ◽

pp. 7-12 ◽

Cited By ~ 3

Author(s):

X.D. Nong ◽

X.L. Zhou ◽

J.H. Li ◽

Y.D. Wang ◽

Y.F. Zhao ◽

...

Keyword(s):

Mechanical Properties ◽

Heat Treatment ◽

Stainless Steel ◽

Selective Laser Melting ◽

Precipitation Hardening ◽

Laser Melting ◽

Refined Microstructure

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Microstructure and mechanical properties of hot wire laser clad layers for repairing precipitation hardening martensitic stainless steel

Optics & Laser Technology ◽

10.1016/j.optlastec.2015.07.014 ◽

2015 ◽

Vol 75 ◽

pp. 207-213 ◽

Cited By ~ 28

Author(s):

Peng Wen ◽

Zhipeng Cai ◽

Zhenhua Feng ◽

Gang Wang

Keyword(s):

Mechanical Properties ◽

Stainless Steel ◽

Precipitation Hardening ◽

Martensitic Stainless Steel ◽

Hot Wire ◽

Microstructure And Mechanical Properties

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Solution annealing and precipitation hardening effect on the mechanical properties of 630 stainless steel fabricated via laser melting deposition

Materials Science and Engineering A ◽

10.1016/j.msea.2020.139999 ◽

2020 ◽

Vol 794 ◽

pp. 139999 ◽

Cited By ~ 1

Author(s):

Wook Jin Oh ◽

Yong Son ◽

Seung Yeong Cho ◽

Seung Weon Yang ◽

Gwang Yong Shin ◽

...

Keyword(s):

Mechanical Properties ◽

Stainless Steel ◽

Precipitation Hardening ◽

Solution Annealing ◽

Laser Melting ◽

Hardening Effect ◽

Laser Melting Deposition

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Examination of the excessive retained austenite on the surface of a section of 17-7 precipitation hardening stainless steel

10.6028/nist.ir.4502 ◽

1991 ◽

Author(s):

G E Hicho ◽

W J Boettinger ◽

L Swartzendruber ◽

T R Shives

Keyword(s):

Stainless Steel ◽

Retained Austenite ◽

Precipitation Hardening

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Mechanical Properties of Martensitic Stainless Steel (AISI420) Subjected to Conventional and Cryogenic Treatments

Engineering and Technology Journal ◽

10.30684/etj.v38i8a.517 ◽

2020 ◽

Vol 38 (8A) ◽

pp. 1096-1105

Author(s):

Hareer S. Mohamed ◽

Ali H. Ataiwi ◽

Jamal J. Dawood

Keyword(s):

Mechanical Properties ◽

Tensile Strength ◽

Stainless Steel ◽

Corrosion Resistance ◽

Retained Austenite ◽

Martensitic Stainless Steel ◽

Heat Treatments ◽

Soaking Time ◽

Hardness Values

Martensitic Stainless Steel (AISI420) MSS are vastly used because of their properties conventional which mix good mechanical and corrosion resistance. Cryogenic up to -196°C for different soaking time and heat treatments at (1000,500,200°C) for 15 minutes is one of the ways that used to enhance mechanical properties of these steels by means transformation of retained austenite, deformation regarding martensite then carbide refinement. the result showed an increase in tensile strength of samples that were treated cryogenically and tempered at 500°C was 933 (MPa) compared to samples that just treated conventionally in austenitizing and tempering at the same temperature that was 880 (MPa). The hardness values increased considerably to 414HV and 321 HV for the specimen that tempered at 200°C and 500°C respectively, precipitation of small carbides was observed that this is responsible for the improvement in the mechanical properties of the material.

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