Quantitative Research on the Role of Large Precipitates in V–Ti Micro-Alloyed Steel during Dynamic Transformation

In 38MnVS6 steel, the morphology of sulfide inclusion has a strong influence on the fatigue life and machinability of the steel. In most cases, the MnS inclusions show strip morphology after rolling, which significantly affects the steel quality. Usually, the MnS inclusion with a spherical morphology is the best morphology for the steel quality. In the present work, tellurium was applied to 38MnVS6 micro-alloyed steel to control the MnS inclusion. Trace tellurium was added into 38MnVS6 steel and the effect of Te on the morphology, composition, size and distribution of MnS inclusions were investigated. Experimental results show that with the increase of Te content, the equivalent diameter and the aspect ratio of inclusion decrease strikingly, and the number of inclusions with small aspect ratio increases. The inclusions are dissociated and spherized. The SEM-EDS analysis indicates that the trace Te mainly dissolves in MnS inclusion. Once the MnS is saturated with Te, MnTe starts to generate and wraps MnS. The critical Te/S value for the formation of MnTe in the 38MnV6 steel is determined to be approximately 0.075. With the increase of Te/S ratio, the aspect ratio of MnS inclusion decreases and gradually reaches a constant level. The Te/S value in the 38MnVS6 steel corresponding to the change of aspect ratio from decreasing to constant ranges from 0.096 to 0.255. This is most likely to be caused by the saturation of Te in the MnS inclusion. After adding Te in the steel, rod-like MnS inclusion is modified to small inclusion and the smaller the MnS inclusion, the lower the aspect ratio.

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EFFECTS OF COOLING PROCESS ON MICROSTRUC-TURE, MECHANICAL PROPERTIES AND PRECIPIT-ATION BEHAVIORS OF NIOBIUM--TITANIUM MICRO--ALLOYED STEEL

ACTA METALLURGICA SINICA ◽

10.3724/sp.j.1037.2011.00633 ◽

2013 ◽

Vol 48 (4) ◽

pp. 441-449

Author(s):

Jun CHEN ◽

Shuai TANG ◽

Zhenyu LIU ◽

Guodong WANG

Keyword(s):

Mechanical Properties ◽

Alloyed Steel ◽

Cooling Process ◽

Niobium Titanium ◽

Micro Alloyed Steel

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The Role of Resilience in Sexual and Gender Minority Mental Health

The Oxford Handbook of Sexual and Gender Minority Mental Health ◽

10.1093/oxfordhb/9780190067991.013.38 ◽

2020 ◽

pp. 428-442

Author(s):

Dawn M. Szymanski ◽

Kirsten A. Gonzalez

Keyword(s):

Mental Health ◽

Minority Stress ◽

Quantitative Research ◽

Social Stigma ◽

Therapeutic Interventions ◽

Future Research ◽

Minority Mental Health ◽

And Gender ◽

Structural Levels

Many lesbian, gay, bisexual, transgender, and queer (LGBTQ) persons are able to persevere and flourish despite pervasive social stigma and minority stress based on their sexual orientation and gender identity. This chapter reviews the research on LGBTQ resilience that can occur at individual, interpersonal/family, community, and contextual/structural levels. The authors describe qualitative research that has examined pathways to resilience and positive LGBTQ identity. The authors also review quantitative research on LGBTQ resilience via mediator, moderator, and moderated mediation models. Variables are described that have been found to explain or buffer the links between external and internalized minority stressors and mental health outcomes. The authors review the small but growing body of research that has begun to examine the efficacy of therapeutic interventions aimed at promoting LGBTQ resilience. Limitations are discussed and directions for future research are suggested.

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The Sexual Experience of Married Middle-Aged Women as a Source of Mental Wellbeing: Perceptions, Challenges and Coping Mechanisms

Social Issues in Israel ◽

10.26351/siii/30-1/6 ◽

2021 ◽

Vol 30 (1) ◽

pp. 181-203

Author(s):

Tal Braverman-Uriel ◽

Tal Litvak-Hirsch

Keyword(s):

Quantitative Research ◽

Sexual Experience ◽

Women's Leadership ◽

Mental Wellbeing ◽

Structured Interviews ◽

Significant Development ◽

And Coping ◽

The Impact

The impact of sexuality on mental wellbeing in women in long-term relationships has only been partially investigated. Emphasis has been on quantitative research studies that do not capture the breadth of the field. The present study looked at how and to what extent women maintain sexual desire in long-term relationships, and how sexuality affects their mental wellbeing. The study used a qualitative narrative approach and included semi-structured interviews with approximately 20 Israeli women aged 40–55 from similar socioeconomic backgrounds and in longstanding, permanent relationships. The findings indicate significant development over the years in the perception of the role of sexuality and its impact on mental wellbeing. The path to good sexuality can and should follow women’s leadership and initiative. Such women have the desire to make an impact, willingness to make an effort, and even an actual ability to exert influence. The interviewees’ tools, strategies, insights and ways of coping can serve as models for other women seeking better sexuality in a long-term relationship.

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