Fracture characteristics of thermally exposed 9Cr-1Mo steel after tensile and impact testing at room temperature

被引：60
|
作者：
Blach, Juraj [1 ]
Falat, Ladislav [1 ]
Sevc, Peter [1 ]
机构：
[1] Slovak Acad Sci, Inst Mat Res, Kosice 04001, Slovakia
来源：
ENGINEERING FAILURE ANALYSIS | 2009年 / 16卷 / 05期
关键词：
9Cr-1Mo steel; Thermal exposition; Microstructure; Tensile and impact properties; Fracture mode; MECHANICAL-PROPERTIES; DUCTILITY;
D O I：
10.1016/j.engfailanal.2008.09.003
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The paper deals with the fracture analysis of thermally exposed 9Cr-1Mo ferritic steel after tensile and impact testing at room temperature. The temperatures of the thermal expositions were 580, 620, and 650 degrees C, respectively. The duration of annealing experiments varied from 500 to 5000 h. The influence of thermal expositions on Vickers hardness as well as tensile properties was found to be negligible. On the other hand, remarkable effects of the annealing on room temperature impact toughness were observed. Fracture behaviour of the 9Cr-1Mo steel is strongly affected by the presence of precipitates of secondary phases. Fracture surfaces of tensile samples indicate mainly transgranular dimple fracture mechanism. By contrast, the fracture mode of the samples after impact testing is more complex. It shows both - ductile dimple tearing as well as inter-lath decohesion. (C) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1397 / 1403
页数：7
相关论文
共 50 条
  • [1] Ratcheting Fatigue Behavior of Modified 9Cr-1Mo Steel at Room Temperature
    Mishra, Prerna
    Rajpurohit, R. S.
    Srinivas, N. C. Santhi
    Sastry, G. V. S.
    Singh, Vakil
    METALS AND MATERIALS INTERNATIONAL, 2021, 27 (12) : 4922 - 4936
  • [2] Effect of B and N Content and Austenitization Temperature on the Tensile and Impact Properties of Modified 9Cr-1Mo Steels
    Rejeesh, Ravindran
    Barik, Rakesh Kumar
    Mitra, Rahul
    Kostryzhev, Andrii
    Das, Chitta R.
    Albert, Shaju K.
    Chakrabarti, Debalay
    METALS, 2023, 13 (06)
  • [3] Mechanical properties of 9Cr-1Mo steel at ambient temperature after thermal holding at elevated temperature
    Blach, J
    Sevc, P
    Janovec, J
    KOVOVE MATERIALY-METALLIC MATERIALS, 2003, 41 (06): : 402 - 415
  • [4] Influence of Pre-Ratcheting Fatigue on Tensile Behavior of Modified 9Cr-1Mo Steel at Ambient Temperature
    Mishra, Prerna
    Santhi Srinivas, N. C.
    Sastry, G. V. S.
    Singh, Vakil
    TRANSACTIONS OF THE INDIAN INSTITUTE OF METALS, 2021, 74 (04) : 937 - 948
  • [5] Influence of Processing Route and Section Size on Elevated Temperature Tensile Properties of 9Cr-1Mo Ferritic Steel
    Choudhary, Binod Kumar
    HIGH TEMPERATURE MATERIALS AND PROCESSES, 2012, 31 (01) : 27 - 35
  • [6] Influence of Pre-Ratcheting Fatigue on Tensile Behavior of Modified 9Cr-1Mo Steel at Ambient Temperature
    Prerna Mishra
    N. C. Santhi Srinivas
    G. V. S. Sastry
    Vakil Singh
    Transactions of the Indian Institute of Metals, 2021, 74 : 937 - 948
  • [7] Understanding room temperature deformation behavior through indentation studies on modified 9Cr-1Mo steel weldments
    Das, C. R.
    Albert, S. K.
    Bhaduri, A. K.
    Murty, B. S.
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2012, 552 : 419 - 426
  • [8] Porosity Developments within 9Cr-1Mo Steel Exposed to CO2
    Coghlan, Lawrence
    Higginson, Rebecca
    Jepson, Mark A. E.
    Shin, Aya
    Pearson, Jonathan
    THERMEC 2018: 10TH INTERNATIONAL CONFERENCE ON PROCESSING AND MANUFACTURING OF ADVANCED MATERIALS, 2018, 941 : 426 - 431
  • [9] Dynamic strain ageing, deformation, and fracture behavior of modified 9Cr-1Mo steel
    Verma, Preeti
    Rao, G. Sudhakar
    Chellapandi, P.
    Mahobia, G. S.
    Chattopadhyay, Kausik
    Srinivas, N. C. Santhi
    Singh, Vakil
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2015, 621 : 39 - 51
  • [10] Creep deformation and fracture behaviour of modified 9Cr-1Mo steel in flowing liquid sodium environment
    Ravi, S.
    Vanaja, J.
    Vijayanand, V. D.
    Rajasundaram, P.
    Vijayaraghavan, S.
    Shanthugavel, M.
    Babu, B.
    Laha, K.
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2017, 702 : 232 - 240
12345