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Article
Publication date: 22 August 2017

Nataliya Perevoshchikova, Jordan Rigaud, Yu Sha, Martin Heilmaier, Barrie Finnin, Elena Labelle and Xinhua Wu

The Ni-based superalloy IN-738 LC is known to be susceptible to porosity and different types of cracking during the build-up process and, thus, challenging to manufacture using…

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Abstract

Purpose

The Ni-based superalloy IN-738 LC is known to be susceptible to porosity and different types of cracking during the build-up process and, thus, challenging to manufacture using selective laser melting (SLM). Determining a feasible set of operating parameters for SLM of nickel-based superalloys involves new approach to experimental design based on the Doehlert method that assists in determining an optimal (feasible) set of operating parameters for SLM of IN-738 LC powder alloy.

Design/methodology/approach

The SLM parameters are evaluated in terms of their effectiveness in obtaining the microstructure with a porosity content of <0.5 per cent and without micro-cracking. The experimental approach is exemplified with the Doehlert matrix response variable, relative density, by comparing Archimedes method with microstructural assessments of pores and cracks from image analysis. The effect of heat treatment (HT) and hot isostatic pressing (HIP) on the microstructure of the SLMed IN-738 LC powder alloy has been examined and the consequential tensile response characterised.

Findings

By using optimised process parameters (low heat input, medium scanning speed and small hatching distance) which provides medium energy density, samples of IN-738 LC with a macroscopic porosity <0.5 per cent and free of micro-cracks can be manufactured by SLM. The results indicate that HIP of SLMed material did not lead to a noticeable effect on mechanical properties compared to HT of SLMed material suggesting that the level of both porosity and crack density might be already below the detection limit for the mere heat-treated material.

Originality/value

SLM processing parameters (power, scan speed, hatching distance) for IN-738 LC were successfully optimised after only 14 experiments using Doehlert design. Two independent methods, Archimedes method and image analysis, were used in this study to assess relative density of SLM-produced samples with sets of processing parameters showing coherency in prediction with predicted response by Doehlert design.

Details

Rapid Prototyping Journal, vol. 23 no. 5
Type: Research Article
ISSN: 1355-2546

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Article
Publication date: 1 March 2007

Patrick Frottier, Franz König, Teresa Matschnig, Michaele‐Elena Seyringer and Stefan Frühwald

The decision whether admitted inmates should be placed in solitary cells or shared cells has to take place immediately after intake. This decision can have major impact on the…

216

Abstract

The decision whether admitted inmates should be placed in solitary cells or shared cells has to take place immediately after intake. This decision can have major impact on the occurrence of suicide in custody. The ‘Viennese Instrument for Suicidality in Correctional Institutions’ presented here is based on the results of a case‐control study examining suicide prevention in general and within the prison population in particular. The administration of this instrument helps the officers to decide about the accommodation without an immediate psychiatric or psychological assessment. The screening of newly admitted offenders to prison for suicidality is necessary to better estimate the suicide risk.

Details

International Journal of Prisoner Health, vol. 3 no. 3
Type: Research Article
ISSN: 1744-9200

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Article
Publication date: 28 September 2022

Beatrice Avolio, Carolina Pretell and Edy Valcazar

This phenomenological study aims to analyze the factors perceived by women to be important to their nomination and selection for board positions in Peruvian public companies. The…

367

Abstract

Purpose

This phenomenological study aims to analyze the factors perceived by women to be important to their nomination and selection for board positions in Peruvian public companies. The importance of this study lies in understanding the qualities that are important for women to possess, as perceived by those women who have reached leadership positions, achieving empowerment and economic autonomy.

Design/methodology/approach

The study population consisted of 33 women who became company directors in 2019, according to the data of the Lima Stock Exchange. From this group, the authors conducted 12 in-depth interviews with those women who accepted to participate in this study. The information was analyzed based on the stages suggested by Moustakas (1994).

Findings

This study proposes a conceptual framework with 13 factors perceived by women during their nomination and selection for board positions in Latin American public companies, focusing on the case of Peru. The factors are training and learning, professional experience, self-awareness, attitude, resilience, networking, communication skills, empathy, “hard work,” capacity to make important decisions, soft skills, support networks and allies and passion for their work.

Originality/value

Based on the experiences of the participants, this study identified 13 critical factors for women to achieve leadership positions as board members. From a phenomenological approach, the relevance of said factors is that they have emerged from the point of view of women who live in a patriarchal and collectivistic culture with a high gender gap index.

Details

Gender in Management: An International Journal , vol. 38 no. 1
Type: Research Article
ISSN: 1754-2413

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Article
Publication date: 10 November 2022

Linh-Chi Vo, Mary C. Lavissière and Alexandre Lavissière

This paper contributes to the social pillar of sustainable supply chain management. It does so by investigating how women managers in the maritime sector handle work-family…

863

Abstract

Purpose

This paper contributes to the social pillar of sustainable supply chain management. It does so by investigating how women managers in the maritime sector handle work-family conflict, thereby acting as institutional entrepreneurs to create a work-family balance logic. The maritime sector is a male-dominated supply chain management environment, which suffers from a talent gap of a lack of women executives. One reason for this problem is work-family balance issues that deter women from staying in the workforce.

Design/methodology/approach

The authors interviewed 35 women working as port managers in different developing countries. The authors analyzed their strategies in coping with the conflict between family and work to create a work-family balance logic.

Findings

The authors found four different types of strategies to handle work-family conflicts. Responses showed that women executives in this sector can be institutional entrepreneurs. Based on the findings, the authors were able to confirm and contribute to the existing model proposed by Silva and Nunes (2021) on sustainable supply chain logic. The authors also provided recommendations for these women as institutional entrepreneurs and for policymakers to retain women talent in the supply chain management.

Research limitations/implications

The research focuses on a specific supply chain management sector, which is the maritime sector. It also relies exclusively on interview data.

Practical implications

The authors propose recommendations to develop a work-family balance logic and retain talented women in the supply chain industry based on monitoring equality and supporting their need for a work-family balance, both in the short and long terms.

Originality/value

The authors interviewed women executives in one of the most male dominated sectors. The authors studied their ability to cope with work-family conflicts and identified four ways to create a work-family balance logic. These findings enabled us to show the contribution and limits of women executives as institutional entrepreneurs for work family balance logics in male dominated sectors.

Details

International Journal of Physical Distribution & Logistics Management, vol. 53 no. 1
Type: Research Article
ISSN: 0960-0035

Keywords

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